2007 honda trx420tm/fm fourtrax rancher …owners.honda.com/.../2007/2007_trx420tm_fm.pdf · 2007...

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2007Honda TRX420TM/FMFOURTRAX RANCHER 420/4 4OWNER’S MANUAL

FOR OFF-ROAD USE ONLYThis vehicle is designed and manufactured for off-road use only.USA only:It conforms to US EPA Noise Emission regulations, but does notconform to Federal Motor Vehicle Safety Standards or US EPA OnHighway Exhaust Emission regulations, and operation on public streets,roads, or highways is illegal. The vehicle is equipped with a USDAqualified spark arrester. Obey local laws and regulations.It conforms to US EPA and California exhaust emission regulations forATVs.

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Introduction

Introduction

Congratulations on choosing your Honda ATV.

When you own a Honda, you’re part of a worldwide family of satisfiedcustomers people who appreciate Honda’s reputation for buildingquality into every product.

Your Honda was designed as a recreational ATV for off-road use byone rider only.

Before riding, take time to get acquainted with your ATV and how itworks. To protect your investment, we urge you to take responsibilityfor keeping your ATV well maintained. Scheduled service is a must, ofcourse. But it’s just as important to observe the break-in guidelines, andperform all pre-ride and other periodic checks detailed in this manual.

We also recommend that you read this owner’s manual before you ride.It’s full of facts, instructions, safety information, and helpful tips. Tomake it easy to use, the manual contains a detailed list of topics at thebeginning of each section, and both an in-depth table of contents and anindex at the back of the book.

As you read this manual, you will find information that is preceded by asymbol. This information is intended to help you avoid damage

to your Honda, other property, or the environment.

Read the Warranties Booklet (page ) thoroughly so you understandthe coverages that protect your new Honda and are aware of your rightsand responsibilities.

Whenever you ride, tread lightly. By staying on established trails andriding only in approved areas, you help protect the environment andkeep off-road riding areas open for the future.

209

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Introduction

Introduction

WARNING:California Proposition 65 Warning

This product contains or emits chemicals known to theState of California to cause cancer and birth defects or otherreproductive harm.

If you have any questions, or if you ever need special service or repairs,remember that your Honda dealer knows your ATV best and isdedicated to your complete satisfaction.

You may also want to visit our website at www.honda.com.

Please report any change of address or ownership to your Honda dealerso we will be able to contact you concerning important productioninformation.

Happy riding!

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A Few Words About Safety

Safety Labels

Safety MessagesDANGER, WARNING, CAUTION


–– on the ATV.

–– preceded by a safety alert symbol and one ofthree signal words: or .

Your safety, and the safety of others, is very important. And operatingthis ATV safely is an important responsibility.

To help you make informed decisions about safety, we have providedoperating procedures and other information on labels and in this manual.This information alerts you to potential hazards that could hurt you orothers.

Of course, it is not practical or possible to warn you about all hazardsassociated with operating or maintaining an ATV. You must use yourown good judgment.

You will find important safety information in a variety of forms,including:

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You WILL be KILLED orSERIOUSLY HURT if you don’tfollow instructions.

You CAN be KILLED or SERIOUSLYHURT if you don’t followinstructions.

You CAN be HURT if you don’tfollow instructions.



Safety Headings

Safety Section

Instructions

These signal words mean:

–– such as Important Safety Reminders or ImportantSafety Precautions.

–– such as ATV Safety.

–– how to use this ATV correctly and safely.

This entire manual is filled with important safety information –– pleaseread it carefully.

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Contents

Contents

.......................................................................................ATV Safety .

...................................................................Instruments & Controls .

....................................................................................Before Riding .

...............................................................Basic Operation & Riding .

1

9

29

45

These pages give an overview of the contents of your owner’s manual.The first page of each section lists the topics covered in that section.

Important safety information you should know, plus a look at thesafety-related labels on your ATV.

The location and function of indicators and controls on your ATVand operating instructions for various controls and features.

The importance of wearing a helmet and other protective gear, how tomake sure you and your ATV are ready to ride, and importantinformation about loading.

How to start and stop the engine, shift gears, and brake. Also, ridingprecautions.

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Contents

Contents

.....................................................................Servicing Your Honda .

....................................................................................................Tips .

......................................................Taking Care of the Unexpected .

.....................................................................Technical Information .

....................................................................Consumer Information .

.............................................................................Table of Contents .

..................................................................................................Index .

Quick Reference

191

205

214

220

77

161

171

Why your ATV needs regular maintenance, what you need to knowbefore servicing your Honda, an owner maintenance schedule, andinstructions for specific maintenance and adjustment items.

How to store and transport your ATV and how to be anenvironmentally-responsible rider.

What to do if you have a flat tire, your engine won’t start, etc.

ID numbers, technical specifications, and other technical facts.

Information on warranties, emission controls, how to get Hondaservice manuals.

Sequential listing of topics in this owner’s manual.

Handy facts about fuel, engine oil, tire sizes, and air pressures.

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1

ATV Safety

ATV Safety

This section presents some of the most important information andrecommendations to help you ride your ATV safely. Please take a fewmoments to read these pages. This section also includes informationabout the location of safety labels on your ATV.

................................................................Important Safety Information . 2..........................................................................................Safety Labels . 5

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2

Important Safety Information

Follow the Age Recommendation

Always Wear a Helmet

Never Carry a Passenger

ATV Safety

Your ATV can provide many years of service and pleasure if you takeresponsibility for your own safety and understand the challenges youcan meet while riding.

There is much that you can do to protect yourself when you ride. You’llfind many helpful recommendations throughout this manual. Thefollowing are a few that we consider most important.

The minimum recommended age for this ATV model is 16. Childrenunder age 16 should never operate this vehicle.

Your ATV is designed for one person only. There are no handholds,footrests, or seat for a second person so never carry a passenger. Apassenger could interfere with your ability to move around to maintainyour balance and control of the ATV.

It’s a proven fact: helmets significantly reduce the number and severityof head injuries. So always wear an approved motorcycle helmet. Wealso recommend that you wear eye protection, sturdy boots, gloves, andother protective gear (page ).30

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3


ATV Safety

Ride Off-Road Only

Take Time to Learn & Practice

Be Alert for Off-Road Hazards

Your ATV is designed and manufactured for off-road use only. Thetires are not made for pavement, and the ATV does not have turn signalsand other features required for use on public roads. If you need to crossa paved or public road, get off and walk your ATV across.

The terrain can present a variety of challenges when you ride off-road.Continually ‘‘read’’ the terrain for unexpected turns, drop-offs, rocks,ruts, and other hazards. Always keep your speed low enough to allowtime to see and react to hazards.

Even if you have ridden other ATVs, take time to become familiar withhow this ATV works and handles. Practice in a safe area until you buildyour skills and get accustomed to the ATV’s size and weight.

Because many accidents involve inexperienced or untrained riders, weurge all riders to take a training course approved by the ATV SafetyInstitute (ASI). See page .Contact an authorized ATV dealer or call 1-800-887-2887 (USA only)to find out about the training courses nearest you.

32

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4


ATV Safety

Ride within Your Limits

Keep Your Honda in Safe Condition

Don’t Drink and Ride

Pushing limits is another major cause of ATV accidents. Never ridebeyond your personal abilities or faster than conditions warrant.Remember that alcohol, drugs, fatigue, and inattention can significantlyreduce your ability to make good judgments and ride safely.

Alcohol and riding don’t mix. Even one drink can reduce your ability torespond to changing conditions, and your reaction time gets worse withevery additional drink. So don’t drink and ride, and don’t let yourfriends drink and ride either.

It’s important to keep your ATV properly maintained and in safe ridingcondition. Having a breakdown can be difficult, especially if you arestranded off-road far from your base. To help avoid problems, inspectyour ATV before every ride and perform all recommended maintenance.

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5ATV Safety

Safety Labels

The labels should be considered permanent parts of the vehicle. If alabel comes off or becomes hard to read, contact your Honda dealer forreplacements.

Your ATV comes with a hang tag and several labels containingimportant safety information. Anyone who rides the vehicle should readand understand this information before riding.

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6

Safety Labels

ATV Safety

USA only

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7

Safety Labels

ATV Safety

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8

Safety Labels

ATV Safety

(TRX420FM only)

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9

Instruments & Controls


This section shows the location of all indicators and controls you wouldnormally use before or while riding your ATV.

The items listed on this page are described in this section. Instructionsfor other components are presented in other sections of this manualwhere they will be most useful.

...............................................................................Indicators & Gauge .........................................................................................Fuel Gauge .

..............................................................................Controls & Features ..........................................................................................Fuel Valve .

..................................................................................Ignition Switch .

.........................................................Operation Component Locations . 10

.......................................................................................Start Button ............................................................................Engine Stop Switch .

...............................................................................Headlight Switch ..................................................................Headlight Dimmer Switch .

...................................................................................Throttle Lever .......................................................................Reverse Selector Knob .

....................................................................................Parking Brake .

.............................................................................Front Brake Lever ...............................................................................Rear Brake Lever .

...............................................................................Rear Brake Pedal .

..............................................................................Flag Pole Bracket .......................................................................................Trailer Hitch .

...................................2WD/4WD Select Lever (TRX420FM only) .

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reverse selector knob

front brake lever

start button

ignition switch

throttle lever

headlight switch

parking brake lock lever

rear brake lever/parking brake lever

headlight dimmerswitch

engine stopswitch

2WD/4WD select lever (TRX420FM only)

10

Operation Component Locations


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rear cargo rack

rear brake pedal

seat latch front cargo rack

fuel valve

11



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trailer hitch

shift lever

flag pole bracket

12



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(4)

(5)

(1) neutral indicator(2) high coolant temperature indicator(3) PGM-FI indicator(4) 4WD indicator (TRX420FM only)(5) reverse indicator

(1) (2)

(3)

13

Indicators & Gauge


The indicators and gauge on your ATV keep you informed, alert you topossible problems, and make your riding safer and more enjoyable.Refer to the indicators frequently. Their functions are described on thefollowing pages.

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14

Indicators & Gauge


Lamp Check.

Lamp Check

When applicable, the reverse or neutral indicators come on when youturn the ignition switch ON ( ) and remain on until you shift out ofreverse or neutral.

The high coolant temperature indicator and PGM-FI indicator come onfor a few seconds and then go off when you turn the ignition switch ON( ).

When applicable, the 4WD indicator comes on when you turn theignition switch ON ( ) and remains on until you shift out of 4WDmode.

If one of these indicators does not come on when it should, have yourHonda dealer check for burned-out bulbs or other problems.

The indicators are identified in the table on page with the words:

TRX420FM only:

15

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15

Indicators & Gauge


Lamp Check.

Lamp Check.

Lamp Check

Lamp Check.

Lamp Check.

Neutral indicator

High coolanttemperatureindicator

Lights when coolant temperature ishigh enough to adversely affect theservice life of the engine.If the high coolant temperatureindicator comes on while you areriding, immediately bring the vehicleto a stop, turn the engine off and letit cool. See page .

PGM-FI indicator Lights when there is any abnormalityin the PGM-FI (Programmed FuelInjection) system. Should also lightfor a few seconds and then go offwhen the ignition switch is turnedON ( ). If the indicator comes onat any other time, reduce speed andtake your vehicle to a Honda dealeras soon as possible.

4WD indicator

Reverse indicator

1

2

3

4

5

Lights when the drive mode is in the4WD mode. .Lights when the transmission is inreverse.

Lights when the transmission is inneutral.

(TRX420FM only)

180

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3.62 US gal (13.7 )

0.74 US gal (2.8 )

(3) (2)(1)

(3) red band(1) fuel gauge(2) gauge needle

16

Fuel Gauge

Indicators & Gauge


When the gauge needle ( ) enters the red band ( ), fuel will be low andyou should refill the tank as soon as possible. The amount of fuel left inthe tank when the needle enters the red band is approximately:

The fuel gauge ( ) shows the approximate fuel supply available. At F(Full), the fuel tank capacity including reserve is:

1

2 3

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－

－

－

OFF RESON

(1)

(1) fuel valve

RIGHT SIDE

17

Fuel Valve

Controls & Features


For complete information about fueling your ATV, see page .

Remember to check that the fuel valve is in the ON position each timeyou refuel. If the fuel valve is left in the RES position, you may run outof fuel with no reserve.

Reserve Fuel

RES for extra fuel to get to a gas supply for refueling.

OFF for parking, storing, or transportation.

ON normal position for riding.

The manual fuel valve ( ) is located on the right side under the fueltank.

The three-way fuel valve is used to control the flow of fuel from thefuel tank to the fuel pump unit.

1

94

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OFF ( )ON ( )

No electrical circuits function.Electrical circuits on.

CENTER OF HANDLEBAR

(1) ignition switch

(1)

ONOFF

OFF

ON

Key Position Function

18

Ignition Switch

Controls & Features


The ignition switch ( ) is used for starting and stopping the engine(page ). Insert the key and turn it to the right for the ON ( )position.

521

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(1)

(1) 2WD/4WD select lever (2) 4WD indicator

(2)

4WD MODE 2WD MODE

2WD MODE 4WD MODE

19

2WD/4WD Select Lever ( only)

Controls & Features


TRX420FM

Your ATV is equipped with a 2WD/4WD select lever ( ), whichpermits a choice between the ‘‘2WD’’ and ‘‘4WD’’ drive modes. Selecta drive mode that’s suitable for your riding.

Keep both hands on the handlebar while machine is in motion and cometo a complete stop before using the 2WD/4WD select lever.

The 2WD/4WD select lever is located on the left side of the fuel tank.To select the drive mode, shift the 2WD/4WD select lever to the desiredposition.

To check your present drive mode, look at the 4WD indicator ( ).

2WD mode : the 4WD indicator goes off.4WD mode : the 4WD indicator goes on.

1

2

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LEFT HANDLEBAR

(1) start button(2) engine stop switch

STARTOFFRUN

(1)

(2)

20

Start Button

Engine Stop Switch

Controls & Features


Starting Procedure,The start button ( ) is used for starting the engine. Pushing the button instarts the engine. See page .

When the start button is pushed, the starter motor will crank the engine.The starter motor will not operate if the engine stop switch is in the OFF( ) position when the start button is pushed.

The engine stop switch ( ) is used to stop the engine in an emergency.To operate, slide the switch to either OFF ( ) position. The switchmust be in the RUN ( ) position to start the engine, and it shouldnormally remain in the RUN ( ) position even when the engine isOFF.

If your ATV is stopped with the ignition switch ON ( ) and theengine stop switch OFF ( ), the battery will discharge. Turn theignition switch OFF ( ) to prevent battery discharge.

153

2

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(1)

(2)

ONOFF

LEFT HANDLEBAR

(1) headlight switch

(2) headlight dimmer switch HILO

21

Headlight Switch

Headlight Dimmer Switch

Controls & Features


The headlight switch ( ) is used to turn the headlight ON ( ) or OFF( ). To operate, turn the switch to ON ( ) or OFF ( ).

The headlight dimmer switch ( ) is used to change between the highand low beams of the headlight. To operate, turn the switch to HI ( )for high beam, LO ( ) for low beam.

1

2

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(1)

(A)

RIGHT HANDLEBAR

(1) throttle lever (A) to open the throttle

22

Throttle Lever

Controls & Features


The throttle controls engine rpm (speed). To increase engine rpm, pressthe throttle lever ( ) with your thumb. To reduce engine rpm, releasepressure on the throttle lever. The throttle will automatically return to theclosed position (engine idle) when you remove your thumb.

1

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(1)

(2)

LEFT HANDLEBAR

(1) reverse selector knob(2) rear brake lever/parking brake lever

23

Reverse Selector Knob

Controls & Features


Riding in Reverse,

The reverse selector knob ( ), located on the rear brake lever/parkingbrake lever ( ), is used to shift into reverse. To operate, with your ATVstopped and the transmission in neutral (make sure the neutral indicatorlights), push in the knob, squeeze the rear brake lever/parking brakelever, then depress the shift lever. See page .

1

59

2

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24

Front Brake Lever

Rear Brake Lever

Rear Brake Pedal

Controls & Features


The front brake lever is used to slow or stop your ATV. To operate, pullthe lever. For information on braking techniques, see page .

The rear brake lever is used to slow or stop your ATV. To operate, pullthe lever. For information on braking techniques, see page .

The rear brake pedal is used to slow or stop your ATV. To operate,depress the pedal. For information on braking techniques, see page .

61

61

61

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(A) to lock

(1)

(A)

(2)

LEFT HANDLEBAR

(1) lock lever(2) rear brake lever/parking brake lever

25

Parking Brake

Controls & Features


Parking

The lock lever ( ) on the rear brake lever/parking brake lever ( )allows it to be used as a parking brake. To operate, first squeeze the rearbrake lever/parking brake lever using your left hand and then lock itwith the lock lever using your right hand. See page .

The brakelights are activated by applying the parking brake. When usingthe parking brake, be sure to turn the ignition switch OFF ( ) to avoiddischarging the battery.

1 2

75

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(1)

(1) flag pole bracket

RIGHT REAR

26

Flag Pole Bracket

Controls & Features


Flag poles are optional equipment available from your Honda dealer. Tomount a pole in the bracket ( ), follow the instructions that come withthe flag pole kit.

Flag poles are required in some riding areas. Check local regulationsbefore riding.

1

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(1)

(1) trailer hitch (2) ball

(2)

REAR

27

Trailer Hitch

Controls & Features


The trailer hitch ( ) is located on the rear axle housing. To use the hitch,you’ll need a proper size ball ( ) as specified by the trailermanufacturer.

To attach the ball and properly hook up a trailer, follow the trailermanufacturer’s instructions. For load limits and operational guidelines,see page .

21

40

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28 Instruments & Controls

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29

Before Riding

Before Riding

Before each ride, you need to make sure you and your Honda are bothready to ride. To help get you prepared, this section discusses how toevaluate your riding readiness, what items you should check on yourATV, and adjustments to make for your comfort, convenience, or safety.This section also includes important information about loading.

.......................................................................Are You Ready to Ride? ..............................................................................Protective Apparel .

...................................................................................Rider Training ........................................................................Age Recommendation .

...................................................................................No Passengers ..........................................................................No Alcohol or Drugs .

................................................................Is Your ATV Ready to Ride? .............................................................................Pre-ride Inspection .

.....................................................................Load Limits & Guidelines ..............................................................................................Loading .

.......................................................................................Load Limits ............................................................................Loading Guidelines .

................................................................Accessories & Modifications .........................................................................................Accessories .

....................................................................................Modifications .

303032333334353539394041424243

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30

Protective Apparel

Are You Ready to Ride?

Before Riding

Before you ride your ATV for the first time, we urge you to:Read this owner’s manual and the labels on your ATV carefully.Make sure you understand all the safety messages.Know how to operate all the controls.

Before each ride, be sure:You feel well and are in good physical and mental condition.

You don’t have any alcohol or drugs in your system.

For your safety, we strongly recommend that you always wear anapproved motorcycle helmet, eye protection, boots, gloves, long pants,and a long-sleeved shirt or jacket whenever you ride.Although complete protection is not possible, wearing proper gear canreduce the chance of injury when you ride.Following are suggestions to help you choose the proper gear.

Helmets and Eye ProtectionYour helmet is your most important piece of riding gear because itoffers the best protection against head injuries. A helmet should fit yourhead comfortably and securely.

You are wearing an approved motorcycle helmet (with chin straptightened securely), eye protection, and other protective clothing.

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Operating this ATV without wearing anapproved motorcycle helmet, eye protection,and protective clothing could increase yourchances of severe injury or death in the event ofan accident.

Always wear an approved motorcycle helmetthat fits properly and wear eye protection(goggles or face shield), gloves, boots,long-sleeved shirt or jacket and long pants.

31


Before Riding

An open-face helmet offers some protection, but a full-face helmetoffers more. Regardless of the style, look for a DOT (Department ofTransportation) sticker in any helmet you buy (USA only). Always weara face shield or goggles to protect your eyes and help your vision.

Riding pants with knee and hip pads, a riding jersey with paddedelbows, and a chest/shoulder protector.

Off-road motorcycle gloves to help protect your hands.

Sturdy off-road motorcycle boots to help protect your feet, ankles,and lower legs.

In addition to a helmet and eye protection, we also recommend:Additional Riding Gear

０６／０９／２７　１０：５２：５３　３１ＨＰ４６００　００４０　

Operating this ATV without proper instructioncould increase your risk of an accident whichcould lead to serious injury or death.

Beginning and inexperienced operators shouldcomplete the certified training course offered byHonda. They should then regularly practice theskills learned in the course and the operatingtechniques described in the owner’s manual.

32

Rider Training


Before Riding

Tips & Practice Guide f or the ATVRider

Developing your riding skills is an on-going process. Even if you haveridden other ATVs, take time to become familiar with how this ATVworks and handles. Practice riding the ATV in a safe area to build yourskills. Do not ride in rough terrain until you get accustomed to theATV’s controls, and feel comfortable with its size and weight.

We urge all riders to take a certified course approved by the ATV SafetyInstitute (ASI). For information about the ASI training course nearestyou, call the national toll-free number; (800) 887-2887 (USA only).

Other riding tips can be found in thebooklet that came with your ATV (USA only).

０６／０９／２７　１０：５３：００　３１ＨＰ４６００　００４１　

A child using an ATV that is not recommendedfor their age could lose vehicle control whileriding, resulting in severe injury or death.

A child under 16 should never operate an ATVwith engine size greater than 90cc.

Carrying a passenger on this ATV greatlyreduces your ability to balance and control thisATV and could cause a crash and you or yourpassenger could be injured or killed.

Never carry a passenger on this ATV.

33

Age Recommendation

No Passengers


Before Riding

The minimum recommended age for this ATV model is 16. For safety,never let children under 16 years old operate this vehicle.

This ATV is designed as an operator-only vehicle. The long seat isdesigned to allow the rider to change body position, not for carrying apassenger. Never let a passenger ride on the seat or on the front or rearcargo racks.

０６／０９／２７　１０：５３：０８　３１ＨＰ４６００　００４２　

－－

Operating this ATV after consuming alcohol ordrugs can seriously affect your judgement,cause you to react more slowly, affect yourbalance and perception, and result in seriousinjury or death.

Never consume alcohol or drugs before or whileoperating this ATV.

34

No Alcohol or Drugs


Before Riding

Alcohol, drugs and ATVs don’t mix. Even a small amount of alcoholcan impair your ability to operate an ATV safely. Likewise, drugseven if prescribed by a physician can be dangerous while operating anATV. Consult your doctor to be sure it is safe to operate a vehicle aftertaking medication.

０６／０９／２７　１０：５３：１４　３１ＨＰ４６００　００４３　

Improperly maintaining this ATV or failing tocorrect a problem before riding can cause acrash in which you can be seriously hurt orkilled.

Always perform a pre-ride inspection beforeevery ride and correct any problems.

35

Pre-ride Inspection

Is Your ATV Ready to Ride?

Before Riding

Engine Oil

RadiatorCoolant

Before each ride, it’s important to inspect your ATV and make sure anyproblem you find is corrected. A pre-ride inspection is a must, not onlyfor safety, but because having a breakdown, or even a flat tire, can be amajor inconvenience.

If your ATV has overturned or been involved in a collision, do not ridethe vehicle until it has been inspected by your Honda dealer. There maybe damage or other problems you cannot see.

Check the following items before you get on the ATV:

Check the level and add oil if needed (page).

Check for leaks.

Check the coolant level and add coolant ifneeded (page ).Check for leaks.

100

111

０６／０９／２７　１０：５３：２３　３１ＨＰ４６００　００４４　

36


Before Riding

Fuel

Driveshaf t Boots

Tires

Leaks, Loose Parts

Air Cleaner HousingDrain Tube

Underbody &Exhaust System

Nuts & Bolts

Propeller Shaf t Boots& Yoke Joint Boot

(TRX420FM only)

Check the level and add fuel (page ) ifneeded. Also make sure the fuel fill cap issecurely fastened.Check for leaks.

Check for damage (page ).

Use a gauge to check the air pressure. Adjust ifneeded. Also look for signs of damage orexcessive wear (page ).

Check for damage (page ).

Walk around your ATV and look for anythingthat appears unusual, such as a leak or loosecable.

Check for deposits in the drain tube. Ifnecessary, clean the tube (page ) and checkthe air cleaner housing.

Check for, and remove, any dirt, vegetation orother debris that could be a fire hazard orinterfere with the proper operation of thevehicle.

Check the wheels to see that the axle nuts aretightened. Use a wrench to make sure allaccessible nuts, bolts, and fasteners are tight.

95

145

150

151

121

０６／０９／２７　１０：５３：３９　３１ＨＰ４６００　００４５　

37


Before Riding

Reverse Assist Lever

Brakes

Throttle

Cargo

Loading Limits

Lights

Cable

Check the freeplay and adjust if needed (page). Make sure the lever operates smoothly

without sticking.

Squeeze the front and rear brake levers andstep on the rear brake pedal to check that thecontrols operate normally. Check for properfreeplay (pages , ). Make sure there isno brake fluid leakage.

Check the freeplay and adjust if needed. Pressthe throttle to make sure it moves smoothlywithout sticking, and snaps shut automaticallywhen it is released, in all steering positions(page ).

Check these items after you get on the ATV:

Check that all cargo is secure.

Make sure you do not exceed the load limits(page ).

If you are carrying cargo, also check the following:

Make sure the headlight, brakelight andtaillight are working properly.

Check the cable housings for wear. Check thefittings for looseness. Replace or tighten asneeded.

40

122

135 137

125

０６／０９／２７　１０：５３：５４　３１ＨＰ４６００　００４６　

38


Before Riding

Headlight andHeadlight DimmerSwitch

Engine StopSwitch

Steering

Check for proper function (page ).

Check for proper function (page ).

Check that the wheels turn properly as yousteer the handlebar. Move the handlebar rightand left and check that there is no excessivebacklash.

Remember, be sure to take care of any problem you find, or have yourHonda dealer correct it before you ride.

21

20

０６／０９／２７　１０：５４：０３　３１ＨＰ４６００　００４７　

Overloading, improper loading, or carrying apassenger can cause a crash and you can beseriously hurt or killed.

Follow all load limits and other loadingguidelines in this manual.

39

Loading

Load Limits & Guidelines

Before Riding

Your Honda was designed as a rider-only ATV. It was not designed tocarry a passenger. It can carry cargo on the cargo racks, however,carrying cargo anywhere else or carrying a passenger could interferewith your balance and control of the ATV.

In addition, exceeding the weight limits or carrying an unbalanced loadcan seriously affect your ATV’s handling, braking and stability. Addingaccessories or making modifications that change this ATV’s design andperformance can also make it unsafe. Also, the weight of anyaccessories will reduce the maximum load the ATV can carry.

More specific information on load limits, accessories, and modificationsfollows.

How much weight you put on your ATV, and how you load it, areimportant to your safety. If you decide to carry cargo, you should beaware of the following information.

０６／０９／２７　１０：５４：１０　３１ＨＰ４６００　００４８　

｛｝

｛｝

133 lbs (60 kg)

rear cargo rack weight limitfront cargo rack weight limit

133 lbs (60 kg)66 lbs (30 kg)

maximum weight capacity

tow weight limit

tongue weight

tongue and rear cargo weight

485 lbs (220 kg)

===

=

=

30 lbs 14 kgf(137 N) recommended

maximum

850 lbs 385 kgf(3776 N)

40

Load Limits


Before Riding

Following are the load limits for your ATV:

There are limits to how much weight can be carried on your ATV and bepulled in a trailer.

The following load limits apply to standard equipment only. Modifyingyour ATV, using non-standard equipment, or riding on terrain that is notflat and smooth could further reduce these limits.

The weight of added accessories will reduce the maximum cargo weightyou can carry.

Tongue weight can be measured with an ordinary bathroom scale. Placethe scale under the tongue, using either a tongue jack or other support tokeep the trailer level.

(includes the weight of the rider,all cargo, and accessories.)

(Combined weight of the trailerand all cargo in the trailer)

(Weight on the trailer tongue)

(Combined weight on the trailertongue and on the rear cargorack)

０６／０９／２７　１０：５４：２１　３１ＨＰ４６００　００４９　

41

Loading Guidelines


Before Riding

Carrying cargo or pulling a trailer will affect how your ATV handlesand greatly reduce its ability in accelerating, braking and making turnsand other maneuvers.

Be sure to observe the weight limits and follow these guidelines:Check that the tires are properly inflated.Do not place cargo anywhere on the ATV other than on the front andrear racks. Otherwise, operating stability may be adversely affected.Never ride with a passenger on the front or rear cargo racks. TheATV is not designed to carry a passenger.Use the trailer hitch to tow another vehicle or trailer. Do not tow bytying a rope or cable to the rear rack.Load cargo on the rear rack as far forward as possible. Make surecargo on the front rack does not interfere with handlebar movement.Do not allow cargo to extend beyond the edges of either the front orrear racks.Make sure all cargo is secured before riding.Balance cargo weight evenly on both sides.Never exceed the maximum weight limit.When towing a trailer, take care to maintain balance and stability.Distribute cargo between the front and rear of the trailer to obtain therecommended tongue weight.Allow extra room for starting, stopping and turning whenever youcarry cargo or pull a trailer.Avoid riding on steep slopes when carrying cargo or pulling a trailer.Never cross a slope when towing a trailer.

０６／０９／２７　１０：５４：３５　３１ＨＰ４６００　００５０　

Improper accessories or modifications cancause a crash in which you can be seriouslyhurt or killed.

Follow all instructions in this owner’s manualregarding accessories and modifications.

42

Accessories

Accessories & Modifications

Before Riding

Modifying your ATV or using non-Honda accessories can make yourATV unsafe.

Before you consider making any modifications or adding an accessory,be sure to read the following information.

We strongly recommend that you use only genuine Honda accessoriesthat have been specifically designed and tested for your ATV. BecauseHonda cannot test all other accessories, you must be personallyresponsible for proper selection, installation, and use of non-Hondaaccessories.Check with your Honda dealer for assistance and always follow theseguidelines:

Make sure the accessory does not obscure any lights, reduce groundclearance, limit suspension travel or steering travel, or interfere withoperating any controls.

Do not add any electrical equipment that will exceed the vehicle’selectrical system capacity (page ). A blown fuse can cause a lossof lights or engine power (page ).

Make sure the accessory does not interfere with your ability to shiftbody position on the seat or operate hand and foot controls.

197182

０６／０９／２７　１０：５４：４４　３１ＨＰ４６００　００５１　

43

Modifications

Accessories & Modifications

Before Riding

We strongly advise you not to remove any original equipment or modifyyour ATV in any way that would change its design or operation. Suchchanges could seriously impair your ATV’s handling, stability, andbraking, making it unsafe to ride.

We also advise you not to make any modifications or remove anyequipment (such as the USDA qualified spark arrester or emissioncontrol system components) that would make your ATV illegal in yourarea.

Removing or modifying your lights, exhaust system, emission controlsystem, or other equipment can also make your ATV illegal.

０６／０９／２７　１０：５４：５０　３１ＨＰ４６００　００５２　

44 Before Riding

０６／０９／２７　１０：５４：５３　３１ＨＰ４６００　００５３　

45

Basic Operation & Riding


This section gives basic riding instructions, including how to start andstop your engine, and how to use the throttle and brakes. It also providesimportant information on riding with cargo.

To protect your new engine and enjoy optimum performance andservice life, refer to Break-in Guidelines (page ).

(cont’d)

........................................................................Safe Riding Precautions ............................................................................Off-Road Use Only .

.....................................................Keep Hands and Feet on Controls .....................................................................................Control Speed .

........................................Use Care on Unfamiliar or Rough Terrain .......................................................................Do Not Perform Stunts .

............................................................Starting & Stopping the Engine .........................................................................................Preparation .

.............................................................................Starting Procedure ..................................................................................Flooded Engine .

....................................................................How to Stop the Engine ........................................................................................Shifting Gears .

..................................................................................Riding in Reverse .

...................................................................................Stalled Engine .....................................Bank Angle Sensor Ignition Cut-off System .

198

474748495051525253545455565759

０６／０９／２７　１０：５５：０８　３１ＨＰ４６００　００５４　

46



..................................................................................................Braking ..................................................................................Riding Your ATV .

....................................................................................Making Turns ............................................................................Skidding or Sliding .

.................................................................................Riding Up Hills .............................................................................Riding Down Hills .

.............................................Crossing or Turning on Hills or Slopes .......................................................................Riding Over Obstacles .......................................................................Riding Through Water .

..................................................................................................Parking .

61636365667071737475

０６／０９／２７　１０：５５：１９　３１ＨＰ４６００　００５５　

Operating this ATV on paved surfaces mayseriously affect handling and control of the ATV,and may cause the vehicle to go out of control.

Never operate the ATV on any paved surfaces,including sidewalks, driveways, parking lots andstreets.

47

Off-Road Use Only

Safe Riding Precautions


ATV Saf etyBef ore Riding

Before riding your ATV for the first time, please review thesection beginning on page 1, and the section beginningon page .

Even if you have ridden other ATVs, take time to become familiar withhow this ATV works and handles. Practice in a safe area until you buildyour skills and get accustomed to the ATV’s size and weight.

Your ATV and its tires are designed and manufactured for off-road useonly, not for pavement. Riding on pavement can affect handling andcontrol. You should not ride your ATV on pavement.

When riding off-road, also remember to always obey local off-roadriding laws and regulations. Obtain permission to ride on privateproperty. Avoid posted areas and obey ‘‘no trespassing’’ signs.

29

０６／０９／２７　１０：５５：２７　３１ＨＰ４６００　００５６　

Operating this ATV on public streets, roads orhighways could cause you to collide withanother vehicle.

Never operate this ATV on any public street,road or highway, even a dirt or gravel one.

Removing hands from handlebars or feet fromfootpegs during operation can reduce yourability to control the ATV or could cause you tolose your balance and fall off of the ATV.

Always keep both hands on the handlebars andboth feet on the footpegs of your ATV duringoperation.

48

Keep Hands and Feet on Controls



You should never ride your ATV on public streets, roads or highways,even if they are not paved. Drivers of street vehicles may have difficultyseeing and avoiding you, which could lead to a collision. In many statesit is illegal to operate ATVs on public streets, roads and highways.

Always keep both hands on the handlebars and both feet on the footpegswhen riding your ATV. This is important to maintain your balance andto control the vehicle. Removing even one hand from the handlebars orone foot from the footpegs can reduce your ability to control the ATVor could cause you to lose your balance and fall off the ATV.

０６／０９／２７　１０：５５：３５　３１ＨＰ４６００　００５７　

Operating this ATV at excessive speedsincreases your chances of losing control of theATV, which can result in an accident.

Always go at a speed that is proper for yourvehicle, the terrain, visibility and other operatingconditions, and your experience.

49

Control Speed



Riding at excessive speed increases the chance of an accident. Inchoosing a proper speed, you need to consider the capability of yourvehicle, the terrain, visibility and other operating conditions, plus yourown skills and experience.

０６／０９／２７　１０：５５：４１　３１ＨＰ４６００　００５８　

Failure to use extra care when operating thisATV on unfamiliar terrain could result in the ATVoverturning or going out of control.

Go slowly and be extra careful when operatingon unfamiliar terrain. Always be alert tochanging terrain conditions when operating theATV.

50

Use Care on Unfamiliar or Rough Terrain



Before riding in a new area, always check the terrain thoroughly. Don’tride fast on unfamiliar terrain or when visibility is limited. (It’ssometimes difficult to see obstructions like hidden rocks, bumps, orholes in time to react.)

０６／０９／２７　１０：５５：４６　３１ＨＰ４６００　００５９　

Failure to use extra care when operating onexcessively rough, slippery or loose terraincould cause loss of traction or vehicle control,which could result in an accident, including anoverturn.

Do not operate on excessively rough, slipperyor loose terrain until you have learned andpracticed the skills necessary to control the ATVon such terrain. Always be especially cautiouson these kinds of terrain.

Attempting wheelies, jumps, and other stuntsincreases the chance of an accident, includingan overturn.

Never attempt stunts, such as wheelies orjumps. Don’t try to show off.

51

Do Not Perform Stunts



You should always operate your ATV in a safe and reasonable manner.When riding, always keep all four wheels on the ground.

Never ride past the limit of visibility. Maintain a safe distance betweenyour ATV and other off-road vehicles. Always exercise caution, and useextra care on rough, slippery and loose terrain.

０６／０９／２７　１０：５５：５２　３１ＨＰ４６００　００６０　

(1)

(1) fuel valve(2) ignition switch

(2)(3)

(4)

(3) neutral indicator(4) engine stop switch

52

Preparation

Starting & Stopping the Engine


Always follow the proper starting procedure described below.

For your safety, avoid starting or operating the engine in an enclosedarea such as a garage. Your ATV’s exhaust contains poisonous carbonmonoxide gas which can collect rapidly in an enclosed area and causeillness or death.

Before starting, select a level surface and lock the parking brake(page ).Turn the fuel valve ( ) and ignition switch ( ) to ON ( ).

The transmission is in neutral (neutral indicator ( ) ON).The engine stop switch ( ) is set to RUN ( ).

Confirm the following:

1.

2. 1

4

2

3

25

０６／０９／２７　１０：５６：０４　３１ＨＰ４６００　００６１　

53

Starting Procedure



This vehicle has a fuel-injected with an automatic choke.Follow the procedure indicated below.

Any Air Temperature

The engine will not start if the throttle is fully open (Because theelectronic control module cuts off the fuel supply).

Press the start button with the throttle completely closed.

０６／０９／２７　１０：５６：１１　３１ＨＰ４６００　００６２　

－

54

Flooded Engine

Bank Angle Sensor Ignition Cut-off System



If Your Engine Quits or Won’tStart,

If the engine fails to start after repeated attempts, it may be flooded withexcess fuel. To clear a flooded engine:

Leave the engine stop switch set to RUN ( ).Open the throttle fully.Press the start button for 5 seconds.Follow the normal starting procedure.If the engine starts, then open the throttle slightly if idling is unstable.

If the engine still won’t start, refer topage .

Your vehicle’s banking (lean angle) sensor system is designed toautomatically stop the engine if the vehicle is overturned.

Before restarting the engine, you must turn the ignition switch to theOFF ( ) position and then back to ON ( ). The engine will notrestart until you perform this procedure.

If the engine does not starts, wait 10 seconds, then follow stepsagain.

1.2.3.4.5.

1

174

4

０６／０９／２７　１０：５６：２３　３１ＨＰ４６００　００６３　

55

Stalled Engine



You can restart the engine while the vehicle is stopped by squeezing thefront brake lever and pressing the start button.

Do not press the throttle lever while starting in gear. Your ATV isequipped with a start inhibitor system that will cut off the ignition if thethrottle is open while attempting to start in gear.

Once you have started the engine, release the front brake lever, thenapply throttle gradually.

０６／０９／２７　１０：５６：２９　３１ＨＰ４６００　００６４　

56

How to Stop the Engine



Normal Engine Stop

Emergency Engine Stop

The engine stop switch should normally remain in the RUN ( )position even when the engine is OFF.

To stop the engine, make sure the transmission is in neutral by checkingthat the neutral indicator lights, and turn the ignition switch OFF ( ).

If your ATV is stopped with the engine stop switch OFF ( ) and theignition switch ON ( ), the battery will discharge.

To stop the engine in an emergency, use the engine stop switch. Tooperate, slide the switch to either OFF ( ) position.

０６／０９／２７　１０：５６：３７　３１ＨＰ４６００　００６５　

UPSHIFTING SEQUENCE

DOWNSHIFTING SEQUENCE

57

Shifting Gears


Your ATV has five forward gears: 1, 2, 3, 4, and 5.

The shift lever is located near the left footpeg. One full stroke of theshift lever shifts the transmission to the next higher or lower gear in theshifting sequence. The shift lever automatically returns to the horizontalposition when released.

To upshift to a higher gear, put the toe of your boot under the shift leverand raise it one full stroke. To downshift, step on the shift lever anddepress it one full stroke.

To select reverse, use the reverse selector knob (page ).

After starting the engine and letting it warm up, follow theseprocedures:

With the transmission in neutral, release the parking brake, butcontinue squeezing the rear brake lever.

(cont’d)

1.

59

０６／０９／２７　１０：５６：４７　３１ＨＰ４６００　００６６　

58

Shifting Gears


With the throttle closed, raise the shift lever one full stroke to shiftinto 1st (first) gear.Release the rear brake lever and increase engine speed by graduallyopening the throttle.When speed increases, release the throttle and shift to 2nd gear byraising the shift lever one full stroke.Repeat this sequence to progressively upshift to 3rd, 4th and 5th (top)gear.To downshift, reverse this sequence. Remember to close the throttleeach time you shift to the next lower gear.

Learning when to shift gears comes with experience. Keep the followingtips in mind:

As a general rule, shift while moving in a straight line.Close the throttle completely before shifting. Improper shifting maydamage the engine, transmission, and drive train.Upshift to a higher gear or reduce throttle before engine rpm (speed)gets too high. Learn the relationship between engine sound and thenormal shifting points.Downshift to a lower gear before you feel the engine laboring(lugging) at low rpm.Avoid downshifting to help slow your ATV when engine rpm is high.Downshifting when engine speed is near its allowable maximum mayover-rev the engine and cause possible damage.To prevent transmission damage, do not coast or tow the ATV forlong distances with the engine off.

Recommended Shift PointsRide in the highest gear that lets the engine run and accelerate smoothly.This will give you good fuel economy and effective emissions control.

4.

5.

6.

3.

2.

０６／０９／２７　１０：５７：００　３１ＨＰ４６００　００６７　

Improperly operating in reverse could cause youto hit an obstacle or person behind you,resulting in serious injury.

Make sure there are no obstacles or peoplebehind you before selecting reverse gear. Whenit is safe to proceed, go slowly.

(1)

(2)

LEFT HANDLEBAR

(1) reverse selector knob(2) rear brake lever/parking brake lever

59Basic Operation & Riding

Riding in Reverse

(cont’d)

If you need to ride in reverse, make sure the area behind you is clear andonly operate the ATV at low speed.

Bring the vehicle to a complete stop, then make sure the transmissionis in neutral.Be sure there are no obstacles or people in the way.While pushing the reverse selector knob ( ) in, squeeze the rear brakelever/parking brake lever ( ), then depress the shift lever.

1.

2.3. 1

2

０６／０９／２７　１０：５７：０９　３１ＨＰ４６００　００６８　

Applying only the rear brake abruptly whenoperating in reverse gear could cause the frontwheels to lift off the ground and the ATV couldoverturn backwards.

Carefully apply both the front and rear brakeswhen stopping in reverse gear.

60

Riding in Reverse


To shift out of reverse and into neutral, raise the shift lever one stroke.

To stop, close the throttle and gradually apply both the front and rearbrakes. Do not abruptly apply the rear brake by itself.

Release the rear brake lever/parking brake lever.Open the throttle gradually and ride slowly. Do not open the throttlesuddenly or make abrupt turns.

4.5.

6.

7.

０６／０９／２７　１０：５７：１６　３１ＨＰ４６００　００６９　

61Basic Operation & Riding

Braking

Your ATV is equipped with disc brakes on both front wheels which arehydraulically activated by operating the right brake lever. A single drumbrake on the rear axle housing is mechanically activated by depressingthe brake pedal or operating the left brake lever.

Although the front and rear brakes have separate controls, all fourwheels are interconnected when your ATV is in the 4WD mode. Sooperating any brake control in the 4WD mode will cause braking at boththe front and rear wheels.

When possible, reduce your speed or complete braking before entering aturn. Avoid braking or closing the throttle quickly while turning. Eitheraction may cause one or more wheels to slip and reduce your control ofyour ATV.

Applying the brakes too hard may cause the wheels to lock and slide,reducing control of your ATV. If this happens, release the brakecontrols, steer straight ahead until you regain control, then reapply thebrakes more gently.

Gradually increase braking as you feel the brakes slowing your speed.The increase in engine compression from downshifting will help slowyour ATV.

To slow or stop, apply the brake lever and brake pedal smoothly, whiledownshifting to match your speed.

For full braking effectiveness, use both the pedal and leversimultaneously. Using both braking systems will stop your ATV fasterwith greater stability.

As a general rule, the front braking system provides about 70 percent oftotal stopping power.

TRX420FM only:

０６／０９／２７　１０：５７：２５　３１ＨＰ４６００　００７０　

62

Braking


Riding Your ATV

Your ability to brake in a turn and to brake hard in an emergencysituation are important riding skills.

When descending a long, steep grade, use engine compression brakingby downshifting, with intermittent use of both brakes. Continuous brakeapplication can overheat the brakes and reduce their effectiveness.

Riding with your foot resting on the brake pedal or your hands on thebrake levers may overheat the brakes, reducing effectiveness.

For information on how to apply the brakes in various riding situations,see the following section, .

０６／０９／２７　１０：５７：３２　３１ＨＰ４６００　００７１　

Turning improperly can make the ATV go out ofcontrol, causing a collision or overturn.

Always follow proper procedures for turningas described in this owner’s manual.Practice turning at low speeds beforeattempting to turn at faster speeds.Do not turn at excessive speeds.

63

Making Turns


Riding Your ATV

Learn how to turn your ATV properly. Practice the techniques outlinedin this section on level ground and at low speeds until you are confidentin making turns.

０６／０９／２７　１０：５７：３８　３１ＨＰ４６００　００７２　

Lean your body to the inside of a turn and forward.

64

Riding Your ATV


To make a turn from a full stop: Apply the throttle gradually when youturn and start up at the same time. Remember to shift your body forwardto make sharp low-speed turns and whenever you turn whileaccelerating from a full stop.

To make a sharp turn at low speed: It helps to shift your body slightlyforward on the seat, and lean inside, as you steer the handlebar. Shiftingweight forward allows the rear wheels to turn easier, and it alsoimproves front-wheel steering.

To make a turn on level ground: Steer the handlebar and lean your bodytoward the inside of the turn. Leaning helps balance the vehicle, and itfeels more comfortable. Leaning into a turn is an important technique tomaster in riding an ATV.

０６／０９／２７　１０：５７：４６　３１ＨＰ４６００　００７３　

Skidding or sliding improperly may cause you tolose control of this ATV. You may also regaintraction unexpectedly, which may cause theATV to overturn.

Learn to safely control skidding by practicing atlow speeds and on level, smooth terrain.

65

Skidding or Sliding

Riding Your ATV


The terrain surface can be a major factor affecting turns. Skiddingduring a turn is more likely to occur on slippery surfaces, such as snow,ice, mud and loose gravel. If you skid on ice, you may lose alldirectional control. To avoid skidding on slippery terrain, keep yourspeed low and ride with caution.

If your ATV skids sideways during a turn, steer in the direction of theskid. Avoid hard braking or accelerating until you have regaineddirectional control.

０６／０９／２７　１０：５７：５３　３１ＨＰ４６００　００７４　

Operating on excessively steep hills can causethe vehicle to overturn more easily thanoperating on level surfaces or small hills.

Never operate the ATV on hills too steep for theATV or for your abilities.

Climbing hills improperly could cause loss ofcontrol or cause the ATV to overturn.

Always follow proper procedures for climbinghills as described in this owner’s manual.

66

Riding Up Hills

Riding Your ATV


The ATV’s ability to safely climb hills largely depends on the rider’sskill and judgment. Begin by practicing on smooth, gentle slopes. Asyou gain experience, you’ll learn the hazards and your own limitations.You may then proceed to ride on more difficult terrain. However, youmust be able to decide which hills or hazards might cause the ATV tooverturn. Avoid excessively steep hills.

When climbing hills, you must shift weight toward the front wheels tohelp keep them on the ground. To do this, shift your body slightlyforward on the seat and lean forward. For greater weight shift, moveyour body farther forward and lean forward.

０６／０９／２７　１０：５８：００　３１ＨＰ４６００　００７５　

Shift weight forward when climbing hills.

67

Riding Your ATV


Never climb hills with excessively slippery or loose surfaces.Always check the terrain carefully before you start up any hill.

To climb a hill, take a running start in an appropriate gear and speedfor the conditions. Maintain a steady speed as you ascend the hill.Never open the throttle suddenly or make sudden gear changes. TheATV could flip over backward.Never go over the top of any hill at high speed. An obstacle, a sharpdrop, or another vehicle or person could be on the other side of thehill.

０６／０９／２７　１０：５８：０８　３１ＨＰ４６００　００７６　

Stalling, rolling backwards or improperlydismounting while climbing a hill could result inthe ATV overturning.

Always follow proper procedures for climbing ahill as described in this owner’s manual.

68

Riding Your ATV


Stalling the ATV and/or Rolling Backwards:

What to do if the ATV stalls or rolls backwards when climbing a hill:If you are about to lose all forward speed:

Using the front and rear brakes together, bring the ATV to a stopwith the vehicle pointed straight uphill.Get off the ATV while you continue holding the brakes.Shift into neutral, set the parking brake and turn the engine off.Then assess the situation.

If the ATV starts rolling backwards before you begin braking:Keep your weight uphill.Carefully apply the front brakes first, then carefully apply therear brake. Do not apply either brake abruptly if you are rollingbackwards, or the vehicle may overturn.

If the ATV continues sliding backwards:After you’ve applied the brakes, get off and away from the vehicle.

If you incorrectly estimate climbing capability or terrain conditions, theATV may not have enough power or traction to continue uphill. If thishappens, the ATV can stall and/or roll backwards.

Remember that operating any brake control in the 4WD mode will causebraking at both the front and rear wheels.

1.2.

1.

2.3.4.

TRX420FM only:

０６／０９／２７　１０：５８：２０　３１ＨＰ４６００　００７７　

Body position forbacking down a hill.

Be sure your legs areclear of the wheels.

69

Riding Your ATV


If the hill is too steep or too slippery, or if you have any doubt whetheryou can safely walk the ATV back down the hill, leave the vehiclewhere it is and get help. If possible, block the wheels so the vehicledoesn’t roll backwards.

If the hill is not too steep and you have good footing, you may be ableto walk the ATV back down the hill. Make sure your intended path isclear in case you lose control of the ATV.

Stand with your body facing downhill, beside the vehicle so you canreach the rear brake lever with your right hand.Be sure your legs are clear of the wheels.Check your footing.Slowly and carefully back the ATV down the hill using the rear brakelever to control speed.If you lose control of the ATV, for your safety, get away from thevehicle.

What to do after the ATV has stalled or rolled backwards:

1.

2.

3.

4.

０６／０９／２７　１０：５８：３０　３１ＨＰ４６００　００７８　

On downhills, shift your weight back.

Going down a hill improperly could cause lossof control or cause the ATV to overturn.

Always follow proper procedures for going downhills as described in this owner’s manual.

70

Riding Down Hills

Riding Your ATV


It’s usually advisable to descend hills with the ATV pointed straightdownhill. Avoid angles that would cause the vehicle to lean sharply toone side.

As you approach a downhill, stop and survey the terrain below. Neverride past the limit of your visibility. Never go down a hill at high speed.

０６／０９／２７　１０：５８：３８　３１ＨＰ４６００　００７９　

Improperly crossing hills or turning on hills couldcause loss of control or cause the ATV tooverturn.

Always follow proper procedures for crossing orturning on slopes as described in this Owner’sManual. Avoid crossing steep hills if possible.

71

Crossing or Turning on Hills or Slopes

Riding Your ATV


When you’ve selected a safe downhill path, shift into a lower gear, shiftyour weight back with your arms extended and braced against thehandlebar, then go down slowly with the throttle closed.

Use mainly the rear brake to control speed. Avoid using either the frontbrake or rear brake hard or abruptly when riding down hills.

Riding on hills or slopes is different from riding on level terrain. Becareful when riding on any hill. Make sure that you practice on gentle,smooth slopes before attempting to ride on steeper or more difficultterrain.

Remember, braking effectiveness is reduced on any hill with a loosesurface.

Remember that operating any brake control in the 4WD mode will causebraking at both the front and rear wheels.

TRX420FM only:

０６／０９／２７　１０：５８：４６　３１ＨＰ４６００　００８０　

Shift weight uphill when crossing slopes.

72

Riding Your ATV


Crossing Hills or SlopesTo maintain balance and stability when riding across a slope, youneed to shift weight toward the uphill side of the vehicle. To do this,move your body off the center of the seat and lean toward the uphillside.On a slippery or loose surface, you may also need to steer slightlyuphill to maintain a straight course across the slope.Avoid crossing hills that are excessively steep, slippery or rough.

Do not make turns on any slopes until you have first mastered thetechniques for making turns on level terrain.

Compared to riding on level ground, you may need to shift moreweight and lean more when making turns on slopes.

Making Turns on Slopes

０６／０９／２７　１０：５８：５５　３１ＨＰ４６００　００８１　

Improperly operating over obstacles couldcause loss of control or a collision and couldcause the ATV to overturn.

When you go over obstacles, always followproper procedures as described in this owner’smanual.

73

Riding Over Obstacles

Riding Your ATV


Before operating in a new area, check for obstacles. Watch out forbumps, rain ruts, potholes and other obstacles in the terrain. When youapproach any obstacle, reduce your speed and be prepared to stop.Never try to ride over large obstacles, such as large rocks or fallen logs.

０６／０９／２７　１０：５９：００　３１ＨＰ４６００　００８２　

The ATV tires have some ability to float.Operating this ATV through deep or fast-flowingwater may cause a loss of traction and loss ofcontrol, which could lead to an accident.

Never operate this ATV in fast-flowing water orin water deeper than that specified in thisOwner’s Manual.

74

Riding Through Water

Riding Your ATV


If the brakes don’t regain effectiveness, stop your ATV and followthe procedures on page .

If necessary, apply the brakes repeatedly until they dry out andoperate normally.

Riding through water can make the brakes less effective thannormal, and may reduce stopping ability.

After leaving the water, always test both the front and rear brakes.

Avoid getting the spark plug or air cleaner wet, as this would causethe engine to stop.

Watch out for submerged obstacles and slippery rocks.Proceed through the water at a slow, steady speed.Choose a path where both banks have gradual slopes.

Your ATV is designed to travel through water up to approximately10 inches (254 mm) deep. Before crossing a stream, make sure the wateris not too deep or flowing too fast.

1.2.3.4.

5.

141

０６／０９／２７　１０：５９：１１　３１ＨＰ４６００　００８３　

75

Parking


Parking on a Steep Incline or a Loose or Slippery Surface

Look for level parking area. Make sure the ground surface is firm.After bringing your ATV to a stop, hold the brakes while you shiftinto neutral.Set the parking brake.Turn the ignition switch OFF ( ).If you’re through riding for the day, turn the fuel valve OFF.

If it is necessary to start the engine when your ATV is stopped on agrade in gear, rock the vehicle back and forth to allow shifting thetransmission into neutral.

If rocks or other objects are available, you can block the wheels asshown for additional security.

If the ATV begins to move, either while sitting on it or after youdismount, find a better parking location.

Turn the ignition switch OFF ( ) and release the brakes.While holding the brakes, set the parking brake.

If you must park your ATV on a steep incline or loose or slipperysurface, use the following procedure:

The brakelights are activated by applying the parking brake. When usingthe parking brake, be sure to turn the ignition switch OFF ( ) to avoiddischarging the battery.

1.2.

3.4.5.

1.2.3.

4.

０６／０９／２７　１０：５９：２５　３１ＨＰ４６００　００８４　

76 Basic Operation & Riding

０６／０９／２７　１０：５９：２８　３１ＨＰ４６００　００８５　

77

Servicing Your Honda


Maintenance, replacement or repair of the emission control devicesand systems may be performed by any ATV repair establishment orindividual using parts that are ‘‘certified’’ to EPA standards.

Bef ore You Service Your Honda

Service Preparations

For information about replacing fuses, see page .

(cont’d)

To help keep your ATV in good shape, this section includes aMaintenance Schedule for required service and step-by-step instructionsfor specific maintenance tasks. You’ll also find important safetyprecautions, information on fuels and oils, and tips for keeping yourHonda looking good.

For information about the exhaust emission and noise requirements ofthe U.S. Environmental Protection Agency (EPA) and the California AirResources Board (CARB), see page .

USA Only

...........................................................The Importance of Maintenance ................................................................................Maintenance Safety .

............................................................Important Safety Precautions ...........................................................................Maintenance Schedule .

..............................................................................Maintenance Record .

......................................................Maintenance Component Locations ..................................................................................................Tool Kit .

.......................................................................Owner’s Manual Storage .........................................................................................Seat Removal .........................................................................................Clip Removal .

182

199

7980818286

8790919293

０６／０９／２７　１０：５９：４２　３１ＨＰ４６００　００８６　

78



Service Procedures

Engine

Electrical

Fluids & Filters.......................................................................................................Fuel .

................................................................................Engine Oil & Filter .....................................................................................Gear Case Oil .

...................................................Differential Oil ( only) ...............................................................................................Coolant .

........................................................................................Air Cleaner .

..............................................................................................Throttle ....................................................................................Clutch System .

........................................................................Reverse Lock System ..........................................................................................Spark Plug .

................................................................................................Valves ....................................................................................Spark Arrester .

Chassis................................................................................................Brakes .

..................................................................................................Tires ................................................................Engine Guard & Skid Plate .

.................................................Driveshaft Boots ( only) ..........................................Propeller Shaft Boots & Yoke Joint Boot .

...............................................................................................Battery .

...............................................................................Appearance Care .

9497

106108110116

122124125126129130

131142149150151

152

157

TRX420FM

TRX420FM

０６／０９／２７　１１：００：０１　３１ＨＰ４６００　００８７　

Improperly maintaining this ATV or failing tocorrect a problem before you ride can cause acrash in which you can be seriously hurt orkilled.

Always follow the inspection and maintenancerecommendations and schedules in this owner’smanual.

79

The Importance of Maintenance


A well-maintained ATV is essential for safe, economical, and trouble-free riding. It will also help reduce air pollution. Careful pre-rideinspections and good maintenance are especially important because yourATV is designed to be ridden over rough off-road terrain.

To help you properly care for your ATV, this section of the manualprovides a Maintenance Schedule. The service intervals in this scheduleare based on average riding conditions.

If your ATV overturns or is involved in a crash, be sure your Hondadealer inspects all major parts, even if you are able to make some repairs.

Frequent servicing of the air cleaner is especially important to help youavoid a possible costly engine repair.

０６／０９／２７　１１：００：０８　３１ＨＰ４６００　００８８　

Failure to properly follow maintenanceinstructions and precautions can cause you tobe seriously hurt or killed.

Always follow the procedures and precautionsin this owner’s manual.

80

Maintenance Safety


This section includes instructions on how to perform some importantmaintenance tasks. If you have basic mechanical skills, you can performmany of these tasks with the tools provided with your ATV.

Other tasks that are more difficult and require special tools are bestperformed by professionals. Removing the wheels should normally behandled only by a Honda technician or other qualified mechanic.Instructions are included in this manual only to assist in emergencyservice.

Some of the most important safety precautions follow. However, wecannot warn you of every conceivable hazard that can arise inperforming maintenance. Only you can decide whether or not youshould perform a given task.

０６／０９／２７　１１：００：１５　３１ＨＰ４６００　００８９　

81

Important Safety Precautions

Maintenance Safety


Carbon monoxide poisoning from engine exhaust.

Burns from hot ATV parts.

Injury from moving parts.

Make sure the engine is off before you begin any maintenance orrepairs. This will help eliminate several potential hazards:

Be sure there isadequate ventilation whenever you operate the engine.

Let the engine and exhaust system coolbefore touching.

Do not run the engine unless instructedto do so.Read the instructions before you begin, and make sure you have thetools and skills required.To reduce the possibility of a fire or explosion, be careful whenworking around gasoline. Use only non-flammable solvent, notgasoline, to clean parts. Keep cigarettes, sparks, and flames awayfrom all fuel-related parts.

Remember that your Honda dealer knows your ATV best and is fullyequipped to maintain and repair it. To ensure the best quality andreliability, use only new genuine Honda parts or other equivalents forrepair and replacement. If you have the tools and skills required foradditional maintenance jobs, you can purchase an official HondaService Manual (page ).206

０６／０９／２７　１１：００：２２　３１ＨＰ４６００　００９０　

82

Maintenance Schedule


The required Maintenance Schedule that follows specifies how oftenyou should have your ATV serviced, and what things need attention. Itis essential to have your ATV serviced as scheduled to maintain safe,dependable performance and proper emission control.

The service intervals in this Maintenance Schedule are based on averageriding conditions. Some items will need more frequent service if youride in unusually wet or dusty areas or at full throttle. Consult yourHonda dealer for recommendations applicable to your individual needsand use.

Some items in the Maintenance Schedule can be performed with basicmechanical skills and hand tools. Procedures for these items areprovided in this manual. Other items involve more extensive proceduresand may require special training, tools, and equipment. We recommendthat you have your Honda dealer perform these tasks unless you haveadvanced mechanical skills and the required tools and equipment.Procedures for such items in this schedule are provided in an officialHonda Service Manual available for purchase (page ).

If you do not feel capable of performing a given task or need assistance,remember that your Honda dealer knows your ATV best and is fullyequipped to maintain and repair it. If you decide to do your ownmaintenance, use only genuine Honda parts or their equivalents forrepair or replacement to ensure the best quality and reliability.

206

０６／０９／２７　１１：００：３０　３１ＨＰ４６００　００９１　

＊＊＊

＊

＊＊

83



Summary of Maintenance Schedule Notes & Procedures:

Perform the pre-ride inspection (page ) and owner maintenance onthis section at each scheduled maintenance period.

Each item on the maintenance schedule requires some mechanicalknowledge. Certain items (particularly those marked and ) mayrequire more technical information and tools. Consult your Honda dealer.

Should be serviced by your Honda dealer, unless you have theproper tools and service data and are mechanically qualified. Referto the official Honda Service Manual (page ).In the interest of safety, we recommend these items be servicedonly by your Honda dealer.

Service more frequently when riding in dusty areas, sand or snow.Service more frequently after riding in very wet or muddy conditions.Replace every 2 years. Replacement requires mechanical skill.

NOTES:1.2.3.

206

35

０６／０９／２７　１１：００：４０　３１ＨＰ４６００　００９２　

－

－

mikm

NOTE

NOTE 1NOTE 2

NOTE 3NOTE 2

10015020

I

R

Every 600 mi(1,000 km),100 operating hoursor 12 months: R

100 mi (150 km),20 operating hoursor 1 month: R

12002000200

IICI

II

RII

FUEL LINETHROTTLE OPERATIONAIR CLEANERAIR CLEANER HOUSINGDRAIN TUBESPARK PLUGVALVE CLEARANCEENGINE OIL

ENGINE OIL FILTERRADIATOR COOLANTCOOLING SYSTEM

Refer topage

122116121

12612997

102110

6001000100

CI

II

RII

REGULAR

ITEMS

FREQUENCYWHICHEVERCOMESFIRST

INITIAL

INITIAL=

REGULAR=

HOURS

MAINT. INTERVALMAINT.

84



Maintenance Procedures:I: inspect and clean, adjust, lubricate, or replace, if necessaryC: cleanA: adjustL: lubricateR: replace

Should be serviced by your Honda dealer, unless you have the proper tools and service data andare mechanically qualified. Refer to the official Honda Service Manual (page ).206

０６／０９／２７　１１：００：５２　３１ＨＰ４６００　００９３　

－

－

－

－－

－

－

mikm

DRIVESHAFT BOOTS(TRX420FM only)REAR FINAL GEAR CASEOIL AND DIFFERENTIALOIL (TRX420FM only)REAR FINAL GEAR CASEOIL (TRX420TM only)2WD/4WD SELECTSYSTEM (TRX420FM only)BRAKE FLUIDBRAKE SHOES WEARBRAKE PADS WEARBRAKELIGHT SWITCHBRAKE SYSTEMREVERSE LOCK SYSTEMSKID PLATE, ENGINEGUARDCLUTCH SYSTEMSUSPENSIONSPARK ARRESTERNUTS, BOLTS,FASTENERSWHEELS/TIRESTIE-ROD AND JOINTBOOTSSTEERING SHAFTHOLDER BEARINGSSTEERING SYSTEM

NOTE

NOTE 3NOTE 1

10015020

III

I

I

II

6001000100

I

I

IIII

IIC

II

12002000200

I

I

I

I

IIIIIII

IICI

II

I

I

Refer topage

150

106,108

106

131139134140131125149

124

130

FREQUENCY

ITEMS

WHICHEVERCOMESFIRST

REGULARINITIAL

HOURS

NOTE 1,2

(R:EVERY

2 YEARS)

(R:EVERY

2 YEARS)

MAINT. INTERVALMAINT.

85Servicing Your Honda


In the interest of safety, we recommend these items be serviced only by your Honda dealer.

Should be serviced by your Honda dealer, unless you have the proper tools and service data andare mechanically qualified. Refer to the official Honda Service Manual (page ).206

０６／０９／２７　１１：０１：０３　３１ＨＰ４６００　００９４　

86

Maintenance Record


PerformedBy:

Date NotesODO orHOUR

Miles (km) orhours100 (150) or20600 (1,000) or1001,200 (2,000) or2001,800 (3,000) or3002,400 (4,000) or4003,000 (5,000) or5003,600 (6,000) or6004,200 (7,000) or7004,800 (8,000) or800

Keeping an accurate maintenance record will help ensure that your ATVis properly maintained. Retain detailed receipts to verify themaintenance was performed. If the ATV is sold, these receipts should betransferred with the ATV to the new owner. Make sure whoeverperforms the maintenance completes this record. All scheduledmaintenance, including the 100 mile (150 km) or 20 hours initialmaintenance, is considered a normal owner operating cost and will becharged for by your dealer. Use the space under Notes to recordanything you want to remind yourself about or mention to your dealer.

０６／０９／２７　１１：０１：１１　３１ＨＰ４６００　００９５　

front brake fluid reservoir

fuel fill cap

front brake lever

throttle lever

rear brake lever/parking brake lever


Maintenance Component Locations

０６／０９／２７　１１：０１：１６　３１ＨＰ４６００　００９６　

air cleaner

engine oil filterrear brakelight switch

coolant reserve tank

differential oil filler cap (TRX420FM only)differential oil drain bolt (TRX420FM only)

front brakecaliperrear brake pedal

air cleanerhousingdrain tube

88 Servicing Your Honda


０６／０９／２７　１１：０１：２２　３１ＨＰ４６００　００９７　

clutch

spark arrester

spark plug

gear case oil filler capgear case oil drain bolt

engine oil drain bolt

battery

owner’s manualair pressure gauge

engine oil filler cap/dipstick

tool kit

fuse boxmain fuse



０６／０９／２７　１１：０１：２８　３１ＨＰ４６００　００９８　

(1) tool kit

REAR

(2)

(1)

(2) storage compartment

(3)

(3) rubber strap

90

Tool Kit


To open the compartment, unhook the rubber strap ( ).

The tool kit ( ) is stored in the storage compartment ( ) below the rearcargo rack.

An optional, larger tool kit may be available. Check with your Hondadealer’s parts department.

1 2

3

０６／０９／２７　１１：０１：３５　３１ＨＰ４６００　００９９　

(3)

(1) owner’s manual(2) seat

(4)

(1)

(2)

SEAT UNDERSIDE

(3) air pressure gauge(4) plastic document bag

91

Owner’s Manual Storage


Your ATV provides storage for the owner’s manual so you’ll have itwith you for easy reference. Store your owner’s manual ( ) in theplastic document bag underside of the seat ( ).

The owner’s manual and air pressure gauge ( ) should be stored in theplastic document bag ( ).

To remove the seat, see page .

Be careful not to flood this area when washing your ATV.

12

92

43

０６／０９／２７　１１：０１：４３　３１ＨＰ４６００　０１００　

(1)

(2)

(4) hooks(5) studs(6) grommets

(3) (5)

(6)

(4)

(1) seat latch(2) seat(3) front prongs

92

Seat Removal


Saf ety PrecautionsRefer to on page .

Press down on the seat until locks.

Installation

Removal

Slide the seat ( ) back and lift it.

Insert the front prongs ( ) into the hooks ( ) on the frame and pressthe studs ( ) into the grommets ( ).

Pull the seat latch ( ) at the rear of the seat.

The seat must be removed for the air cleaner, engine oil, engine oil filter,clutch, spark plug, battery and fuse maintenance and to remove the sidecovers, rear fender cover and left tank side cover, to access the owner’smanual, air pressure gauge, coolant reserve tank cap and color label.

1.

2.

1.2.

35 6

2

4

81

1

０６／０９／２７　１１：０１：５６　３１ＨＰ４６００　０１０１　


Clip Removal

RemovalPress down on the center pin to release the lock.Pull the clip out of the hole.

InstallationPush the bottom of the pin.Insert the clip into the hole.Lightly press down on the center pin to lock the clip.

1. 2.

1.

2. 3.

1.2.

1.2.3.

０６／０９／２７　１１：０２：０４　３１ＨＰ４６００　０１０２　

unleaded86 (or higher)

typepump octane number

94

Fuel Recommendation

Fuel



We recommend that you use unleaded fuel because it produces fewerengine deposits and extends the life of exhaust system components.

Your engine is designed to use any gasoline that has a pump octanenumber of 86 or higher. Gasoline pumps at service stations normallydisplay the pump octane number. For information on the use ofoxygenated fuels, see page .

Use of lower octane gasoline can cause persistent ‘‘pinging’’ or ‘‘sparkknock’’ (a loud rapping noise) which, if severe, can lead to enginedamage. Light pinging experienced while operating under a heavy load,such as climbing a hill, is no cause for concern.

If pinging or spark knock occurs at a steady engine speed under normalload, change brands of gasoline. If pinging or spark knock persists,consult your Honda dealer.

Never use stale or contaminated gasoline or an oil/gasoline mixture.Avoid getting dirt, dust, or water in the fuel tank.

203

81

０６／０９／２７　１１：０２：１５　３１ＨＰ４６００　０１０３　

3.62 US gal (13.7 )

0.74 US gal (2.8 )

(1) fuel fill cap(2) breather tube

(1)

(3) handlebar cover hole(4) filler neck

(3) (2) (4)

95

Fuel Capacity

Refueling Procedure


Fuel

Saf ety Precautions

Fuel tank capacity, including reserve:

Reserve capacity:

Refer to on page .

The tank should be refilled as soon as possible after switching to reserve,and the fuel valve should be returned to the ON position after refuelingto avoid running out of fuel with no reserve.

81

０６／０９／２７　１１：０２：２４　３１ＨＰ４６００　０１０４　

Gasoline is highly flammable and explosive.You can be burned or seriously injured whenhandling fuel.

Stop the engine and keep heat, sparks andflame away.Handle fuel only outdoors.Wipe up spills immediately.

96

Fuel


Add fuel until the level reaches the bottom of the filler neck ( ).Avoid over filling the tank. There should be no fuel in the filler neck.

If the fuel valve was set to RES, turn the fuel valve ON.

If you replace the fuel fill cap, use only a genuine Honda replacementpart.

To open the fuel fill cap ( ), turn it counterclockwise.Pull the breather tube ( ) out of the handlebar cover hole ( ).

After refueling, turn the fuel fill cap clockwise until it clicks.Insert the breather tube into the handlebar cover hole.

1.2.3.

4.5.

4

1

6.

32

０６／０９／２７　１１：０２：３４　３１ＨＰ４６００　０１０５　

97

Engine Oil & Filter


Engine oil quality is a major factor that affects both the performanceand the service life of the engine.

Using the proper oil (page ) and filter, and regularly checking,adding, and changing oil will help extend your engine’s life. Even thebest oil wears out. Changing oil helps get rid of dirt and deposits in theengine. Operating the engine with old or dirty oil can damage yourengine. Running the engine with insufficient oil can cause seriousdamage to the engine and transmission.

Change the engine oil as specified in the maintenance schedule on page. When running in very dusty conditions, oil changes should be

performed more frequently than specified in the maintenance schedule.

98

84

０６／０９／２７　１１：０２：４０　３１ＨＰ４６００　０１０６　

＊

＊

OKNOT RECOMMENDED

API classification

SAE 10W-30viscosity (weight)JASO T 903standardsuggested oil

SG or higher except oils labeled asenergy conserving on the circular APIservice label

MA

Pro Honda GN4 4-stroke oil (USA &Canada), or Honda 4-stroke oil(Canada only), or an equivalentmotorcycle oil.

98

Oil Recommendation

Engine Oil & Filter


Suggested oils are equal in performance to SJ oils that are not labeledas energy conserving on the circular API service label.

Your ATV does not need oil additives. Use the recommended oil.Do not use oils with graphite or molybdenum additives. They mayadversely affect clutch operation.Do not use API SH or higher oils displaying a circular API ‘‘energyconserving’’ service label on the container. They may affectlubrication and clutch performance.

Do not use non-detergent, vegetable, or castor based racing oils.

０６／０９／２７　１１：０２：５５　３１ＨＰ４６００　０１０７　

(1) code number of the sales company of the oil(2) oil classification

(1)

(2)

99

Engine Oil & Filter


Other viscosities shown in the following chart may be used when theaverage temperature in your riding area is within the indicated range.

JASO T 903 standardThe JASO T 903 standard is an index for engine oils for 4-strokemotorcycle engines.There are two classes: MA and MB.Oil conforming to the standard is labeled on the oil container. Forexample, the following label shows the MA classification.

０６／０９／２７　１１：０３：０３　３１ＨＰ４６００　０１０８　

－－

LEFT SIDE

(1)

(1) left side cover

100

Checking & Adding Oil

Engine Oil & Filter



Check the engine oil level each day before operating your ATV and addif needed.

Park your ATV on a firm, level surface.Start the engine in a well-ventilated area and let it idle for 3 5minutes. Stop the engine and wait 2 3 minutes.

Unsnap and remove the left side cover ( ).Remove the seat (page ).

1.

81

3.4.

2.

921

０６／０９／２７　１１：０３：１４　３１ＨＰ４６００　０１０９　

LEFT SIDE(2)

(3)

(4)

(2) oil filler cap/dipstick (3) upper level mark(4) lower level mark

101

Engine Oil & Filter


Running the engine with an improper oil level can cause serious enginedamage.

Insert the oil filler cap/dipstick without screwing it in, then removethe oil filler cap/dipstick and check the oil level. The oil level shouldbe between the upper level mark ( ) and the lower level mark ( ) onthe oil filler cap/dipstick.

Reinstall the oil filler cap/dipstick.

If required, add the specified oil into the filler cap hole, up to theupper level mark on the oil filler cap/dipstick. Do not overfill.

Install the seat.Install the left side cover.

Remove the oil filler cap/dipstick ( ) from the front crankcase andwipe it clean.

5.

6.

7.

8.9.

10.

2

3 4

０６／０９／２７　１１：０３：２５　３１ＨＰ４６００　０１１０　

(1)

UNDER ENGINE

(2) sealing washer

(2)

(1) engine oil drain plug

102

Changing Engine Oil & Filter

Engine Oil & Filter


Saf ety Precautions

Using the wrong oil f ilter may result in leaks or premature enginedamage.

Drain the Engine Oil:

Refer to on page .

Your ATV’s oil filter has very specific performance requirements. Use anew genuine Honda oil filter specified for your model or a filter ofequal quality.

This procedure requires mechanical skill and professional tools such as atorque wrench and oil filter wrench, as well as a means for disposing ofthe drained fluid (page ). If you do not have the skills or the tools,see your Honda dealer.

With the ATV on the level ground, remove the seat (page ), leftside cover (page ) and the oil filler cap/dipstick from the frontcrankcase.Place an oil drain pan under the crankcase and remove the engine oildrain plug ( ) and sealing washer ( ).

1.

2.

170

81

92100

1 2

０６／０９／２７　１１：０３：３７　３１ＨＰ４６００　０１１１　

(1)

RIGHT SIDE

(1) right side cover

103

Engine Oil & Filter


Install a New Engine Oil Filter:

(cont’d)

Unsnap and remove the right side cover ( ).Remove the seat (page ).1.

2.92

1

０６／０９／２７　１１：０３：４４　３１ＨＰ４６００　０１１２　

(2)(3)

RIGHT SIDE

(4)

(2)

(5)

(7)

(6)

(2) oil filter cover(3) bolts(4) oil filter(5) O-rings

(6) spring(7) rubber seal(8) ‘‘OUTSIDE’’ mark

(3)

(8)

104

Engine Oil & Filter


Improper installation of the oil f ilter can cause serious engine damage.

Remove the oil filter cover ( ) by removing the bolts ( ). Let theremaining oil drain out. Discard the oil filter ( ) in an approvedmanner (page ).Check that the oil filter cover O-rings ( ) are in good condition andthen install a new oil filter. Use only the Honda genuine oil filter or afilter of equivalent quality specified for your model. Using the wrongHonda filter or a non-Honda filter which is not of equivalent qualitymay cause engine damage.Reposition the spring ( ) to the engine crankcase and install a new oilfilter with the rubber seal ( ) facing out, away from the engine. Youwill see the ‘‘OUTSIDE (TOWARDS FILTER COVER)’’ mark ( )on the filter body, near the seal.

3.

4.

5.

2

1705

4

67

8

3

０６／０９／２７　１１：０３：５４　３１ＨＰ４６００　０１１３　

－－

7 lbf·ft (10 N·m , 1.0 kgf·m)

2.9 US qt (2.7 )

18 lbf·ft (25 N·m , 2.5 kgf·m)

105

Engine Oil & Filter


Improper disposal of drained f luids is harmf ul to the environment.

Add Engine Oil:

Reinstall the oil filter cover, making sure the bolts are tightened to thespecified torque:

Pour the drained oil into a suitable container and dispose of it in anapproved manner (page ).

Check that there are no oil leaks.

Fill the crankcase with the recommended grade oil approximately:

Reinstall the oil drain plug and tighten it to the specified torque:

Check that the drain plug sealing washer is in good condition. Ifnecessary, replace the sealing washer.

Install the left side cover.Install the seat.

If a torque wrench is not used for installation, see your Honda dealer assoon as possible to verify proper assembly.

Reinstall the oil filler cap/dipstick.Start the engine and let it idle for 3 5 minutes.Stop the engine, wait 2 3 minutes and check the oil level. Make surethe oil is between the upper and lower level marks on the oil fillercap/dipstick. If necessary, add more oil but do not overfill.

Install the right side cover.

1.

2.

3.

4.5.6.

7.

170

6.

7.

8.

8.9.

０６／０９／２７　１１：０４：０９　３１ＨＰ４６００　０１１４　

viscosity (weight)hypoid gear oilSAE 80

suggested oil Honda shaft drive oil or equivalent

type

106

Changing Oil

Oil Recommendation

Gear Case Oil



Change the oil with the gear case at normal operating temperature toassure complete and rapid draining.

81

０６／０９／２７　１１：０４：１９　３１ＨＰ４６００　０１１５　

9 lbf·ft (12 N·m , 1.2 kgf·m)

2.5 US oz (75 cm )

(1)

(4)

(3)

(2)REAR

(3) oil level check bolt(4) oil level check hole

(1) oil drain plug(2) oil filler cap

107

Gear Case Oil


Park the ATV on level ground.Place an oil drain pan under the oil drain plug ( ).Remove the oil filler cap ( ) and the drain plug.After the oil has completely drained, reinstall the drain plug andtighten it to the specified torque:

Fill the gear case with the recommended oil.

Remove the oil level check bolt ( ). Make sure the oil level reachesthe oil level check hole ( ).Install the oil filler cap and oil level check bolt.

1.2.3.4.

5.

6.

7.

2

34

1

０６／０９／２７　１１：０４：３０　３１ＨＰ４６００　０１１６　

typeviscosity (weight)

hypoid gear oilSAE 80

suggested oil Honda shaft drive oil or equivalent

108

Oil Recommendation

Changing Oil

Differential Oil (TRX420FM only)



Change the oil with the differential at normal operating temperature toassure complete and rapid draining.

81

０６／０９／２７　１１：０４：４０　３１ＨＰ４６００　０１１７　

9 lbf·ft (12 N·m , 1.2 kgf·m)

7.8 US oz (230 cm )

(1)

(3)

(2)

(3) oil filler inspection hole

FRONT

(1) oil drain plug(2) oil filler cap


Differential Oil (TRX420FM only)

Park the ATV on level ground.Place an oil drain pan under the oil drain plug ( ).Remove the oil filler cap ( ) and the drain plug.After the oil has completely drained, reinstall the drain plug andtighten it to the specified torque:

Fill the differential with the recommended oil.

Make sure the oil level is at the lower edge of the oil filler inspectionhole ( ).Install the oil filler cap.

1.2.3.4.

5.

6.3

12

０６／０９／２７　１１：０４：５０　３１ＨＰ４６００　０１１８　

110

Coolant Recommendation

Coolant


Using coolant with silicate inhibitors may cause premature wear ofwater pump seals or blockage of radiator passages. Using tap watermay cause engine damage.

Your ATV’s liquid cooling system dissipates engine heat through thecoolant jacket that surrounds the cylinder and cylinder head.

Maintaining the coolant will allow the cooling system to work properlyand prevent freezing, overheating, and corrosion.

Use Pro Honda HP coolant or an equivalent high quality ethylene glycolantifreeze containing corrosion protection inhibitors specificallyrecommended for use in aluminum engines. Check the antifreezecontainer label.

Use only distilled water as a part of the coolant solution. Water that ishigh in mineral content or salt may be harmful to the aluminum engine.

The factory provides a 50/50 solution of antifreeze and water in thisATV. This coolant solution is recommended for most operatingtemperatures and provides good corrosion protection.

Decreasing the concentration of antifreeze to less than 40% will notprovide proper corrosion protection.

０６／０９／２７　１１：０４：５８　３１ＨＰ４６００　０１１９　

(1)

(1) reserve tank(2) UPPER level mark

(2)

(3)

(3) LOWER level mark

RIGHT REAR

111

Checking & Adding Coolant

Coolant


Saf ety Precautions

Increasing the concentration of antifreeze is not recommended becauseit decreases cooling system performance. Higher concentrations ofantifreeze (up to 60%) should only be used to provide additionalprotection against freezing. Check the cooling system frequently duringfreezing weather.

Refer to on page .

Check the engine coolant level each day before operating your ATV andadd if needed.

Make sure the vehicle is on level ground.

(cont’d)

With the engine at normal operating temperature, check the coolantlevel in the reserve tank ( ). It should be between the UPPER ( )and LOWER ( ) level marks.If the reserve tank is empty, or if coolant loss is excessive, check forleaks and see your Honda dealer for repair.

1.2.

1

81

23

０６／０９／２７　１１：０５：０９　３１ＨＰ４６００　０１２０　

(4)

(5)

(4) rubber strap(5) rear fender cover

(6) reserve tank cap

REAR

(6)

112 Servicing Your Honda

Coolant

Add coolant to the reserve tank as required to bring the coolant levelto the UPPER level mark.

Remove the seat (page ).

After adding coolant, install the reserve tank cap and rear fendercover.

Install the seat.Fasten the rubber strap.

Remove the rear fender cover ( ) and reserve tank cap ( ).Always add coolant to the reserve tank. Do not attempt to add coolantby removing the radiator cap.

Unhook the rubber strap ( ).5.

6.

7.

3.4.

92

8.9.

654

０６／０９／２７　１１：０５：２２　３１ＨＰ４６００　０１２１　

Removing the radiator cap while the engine ishot can cause the coolant to spray out, seriouslyscalding you.

Always let the engine and radiator cool downbefore removing the radiator cap.

113

Coolant Replacement


Coolant

Saf ety Precautions

You & the Environment,

Improper disposal of drained f luids is harmf ul to the environment.

Refer to on page .

Coolant should be replaced by your Honda dealer, unless you have theproper tools and service data and are mechanically qualified. Refer tothe official Honda Service Manual (page ).

To properly dispose of drained coolant, refer topage .

81

206

170

０６／０９／２７　１１：０５：３０　３１ＨＰ４６００　０１２２　

(2)

(4)

(1)

(3)

(5)

FRONT(6)(3)

(1) tabs A(2) radiator grill under cover(3) clips

(4) radiator grill covers(5) tabs B(6) couplers

114

Radiator Core


Coolant

Saf ety Precautions

To clean the radiator core and radiator grill plate:

Do not apply pressured water directly to the radiator core. Thepressured water can damage the radiator core.

Refer to on page .

Check the air passages for clogging or damage. Remove insects, mud, orany obstruction with low water pressure. Have the radiator checked byyour Honda dealer if the air flow is restricted over more than 20% of theradiator surface.

Clean the radiator core after riding the ATV in mud.

Unhook the tabs A ( ) and remove the radiator grill under cover ( ).Remove the clips ( ) (page ) and radiator grill covers ( ).Unhook the tabs B ( ) and remove the couplers ( ).

1.2.3.

81

13

593 4

6

2

０６／０９／２７　１１：０５：４３　３１ＨＰ４６００　０１２３　

FRONT

(7) radiator grill plate (8) radiator core

(7)

(8)


Coolant

Remove the radiator grill plate ( ).Wash the radiator core ( ) and radiator grill plate.Install the removed parts in reverse order of removal.

4.5.6.

78

０６／０９／２７　１１：０５：５２　３１ＨＰ４６００　０１２４　

116

Air Cleaner


Saf ety Precautions

Using the wrong air cleaner may result in premature engine damage.

Improper or lack of proper air cleaner maintenance can cause poorperf ormance and premature engine wear.

Refer to on page .

Proper air cleaner maintenance is very important for off-road vehicles.A dirty, water-soaked, worn-out, or defective air cleaner will allow dirt,dust, mud, and other impurities to pass into the engine.

Service the air cleaner more frequently if you ride in unusually wet ordusty areas. Your Honda dealer can help you determine the correctservice interval for your riding conditions.

Your ATV’s air cleaner has very specific performance requirements.Use a new genuine Honda air cleaner specified for your model or an aircleaner of equal quality.

Proper air cleaner maintenance can prevent premature engine wear ordamage, expensive repairs, low engine power, poor gas mileage, andspark plug fouling.

81

０６／０９／２７　１１：０６：００　３１ＨＰ４６００　０１２５　

UNDER SEAT

(2)

(1) retainer clips (2) air cleaner housing cover

(1)

117

Cleaning

Air Cleaner


(cont’d)


Unlatch the retainer clips ( ).Remove the air cleaner housing cover ( ).

1.

2.3.

92

12

０６／０９／２７　１１：０６：０８　３１ＨＰ４６００　０１２６　

－

UNDER SEAT

(6)(5)

(4)(7)

(3) screw(4) air cleaner assembly(5) clamp

(6) air cleaner(7) air cleaner body

(3)

(3)

118

Air Cleaner


Loosen the screw ( ) and remove the air cleaner assembly ( ) fromthe air cleaner housing.

Gently wash the air cleaner in clean, non-flammable (high flashpoint) solvent such as kerosene not gasoline. After cleaning, gentlysqueeze out the remaining solvent. Avoid twisting or wringing the aircleaner. This can tear the foam.Inspect for tears or cracks in the foam or seams of the air cleaner.Replace the air cleaner if it is damaged.Allow the air cleaner to dry thoroughly before applying oil. A wet aircleaner will not fully absorb the oil.Pour clean Pro Honda Foam Filter Oil or an equivalent (Canada:Honda Foam Filter Oil or an equivalent) over the entire surface of theair cleaner. Use both hands to evenly spread the oil into the air cleaner.Gently squeeze out any excess oil. (To keep your hands dry, place theair cleaner in a clean plastic bag before spreading the oil into the aircleaner.)

Unscrew the clamp ( ).Remove the air cleaner ( ) from the air cleaner body ( ).

4.

5.6.7.

8.

9.

10.

3 4

56 7

０６／０９／２７　１１：０６：１９　３１ＨＰ４６００　０１２７　

UNDER SEAT

(8) FRONT mark(9) tab

(8) (9)

(9)

119

Air Cleaner


Install the air cleaner on the air cleaner body.Apply a thin coat of grease to the sealing surface of the air cleanerassembly.Install the clamp.Insert the air cleaner assembly into the air cleaner housing.Fasten the screw.Reassemble by reversing the disassembly sequence.

Install the air cleaner housing cover with the FRONT mark ( )facing forward and fit the cut out of the tab ( ) at the end of theair cleaner.

11.12.

13.14.15.16.

98

０６／０９／２７　１１：０６：２９　３１ＨＰ４６００　０１２８　

(1)

(2)

UNDER SEAT

(1) dust cover (2) breather joint

120

Dust Cover

Air Cleaner


Do not push the dust cover ( ) too far into the breather joint ( ).If the dust cover is dirty, clean it.

1 2

０６／０９／２７　１１：０６：３５　３１ＨＰ４６００　０１２９　

(1)

(2)(3)

(1) drain tube(2) clip

(3) air cleaner housing

REAR

121

Air Cleaner Housing Drain Tube

Air Cleaner


The air cleaner housing drain tube should be serviced in accordance withthe Maintenance Schedule. (Riding through water may require morefrequent inspection.) If deposits can be seen in the drain tube, the tubemust be cleaned before starting the vehicle.

Remove the drain tube ( ) by removing the clip ( ) under the aircleaner housing ( ).Drain the deposits.Reinstall the drain tube, securing it with the clip.

1.

2.3.

1 23

０６／０９／２７　１１：０６：４１　３１ＨＰ４６００　０１３０　

－－

－－

1/8 5/16 in(3 8 mm)

1/8 5/16 in (3 8 mm)

(1)(2)

(B)

((AA))

(4)(3)

(1) throttle lever(2) rubber sleeve(3) throttle cable adjuster

RIGHT HANDLEBAR

(4) lock nut(A) decrease freeplay(B) increase freeplay

122

Throttle Freeplay

Throttle



After adjustment, check for smooth operation of the throttle leverfrom fully closed to fully open in all steering positions.

Tighten the lock nut and reinstall the sleeve.

Loosen the lock nut ( ).Turn the adjuster to obtain the correct freeplay.

Slide the rubber sleeve ( ) back to expose the throttle cable adjuster( ).

Adjustment

Check freeplay at the throttle lever ( ).Freeplay:

Inspection

1.

2.3.4.5.

32

4

81

1

０６／０９／２７　１１：０６：５４　３１ＨＰ４６００　０１３１　

123

Throttle Inspection

Throttle



Check that the throttle assembly is positioned properly and thesecuring bolts are tight.Check for smooth operation of the throttle lever from fully open tofully closed in all steering positions. If there is a problem, see yourHonda dealer.

Check the cables for tension or stress in all steering positions.Lubricate the cables with a commercially-available cable lubricant toprevent premature wear and corrosion.

Inspect the condition of the throttle cables from the throttle leverdown to the throttle body. If the cable is kinked or chafed, have itreplaced.

1.

2.

3.

4.5.

81

０６／０９／２７　１１：０７：０４　３１ＨＰ４６００　０１３２　

(2)

(1) lock nut (2) clutch adjuster

(1)LEFT FRONT

124

Clutch Adjustment

Clutch System


Saf ety Precautions

Your ATV’s shift-activated, wet, multiplate clutch is part of the primarydrive system. Proper adjustment allows a smooth, gradual engagementwhen shifting gears.

Refer to on page .

If you cannot get proper adjustment, or the clutch does not workproperly, the clutch friction discs may be worn. See your Honda dealeror refer to official Honda Service Manual (page ).

Make sure the ignition switch is OFF ( ).Remove the seat (page ) and left side cover (page ).Loosen the lock nut ( ).Turn the clutch adjuster ( ) counterclockwise until you feel slightresistance.Turn the adjuster 1/4 turn clockwise, then tighten the lock nut to holdthe adjuster in this position.After adjustment, start the engine and test ride your ATV to be surethe clutch is operating properly.Install the removed parts in reverse order of removal.

Make sure the engine is cool.1.2.3.4.5.

206

81

6.

7.

8.

921

2

100

０６／０９／２７　１１：０７：１７　３１ＨＰ４６００　０１３３　

－－

－－

1/16 3/16 in(2 4 mm)

1/16 3/16 in (2 4 mm)

(2)(5)

(6)

(3)(4)

LEFT HANDLEBAR(1)

(4) rubber sleeve(5) lock nut(6) adjusting nut

(1) dust cover(2) reverse assist lever(3) rear brake lever

125

Reverse Lock System Adjustment


Reverse Lock System

Saf ety Precautions

Other ChecksCheck the reverse assist lever and cable for loose connections or otherdamage. If the cable is worn or kinked, have it replaced by your Hondadealer.

Refer to on page .

Return the dust cover and rubber sleeve.

Turn over the dust cover ( ).Check the reverse assist lever ( ) freeplay, measured at the rear brakelever ( ) end near the cable:

To adjust, slide the rubber sleeve ( ), loosen the lock nut ( ) and turnthe adjusting nut ( ).After adjustment, tighten the lock nut securely.

1.2.

3.

4.

12

3

56

4

81

０６／０９／２７　１１：０７：３０　３１ＨＰ４６００　０１３４　

BKR5E-11 (NGK)K16PR-U11 (DENSO)

orstandard spark plug

LEFT SIDE

(1) left tank side cover (2) bolts

(2)

(1)

126

Spark Plug Recommendation

Spark Plug Replacement & Inspection

Spark Plug


Using spark plugs with an improper heat range can cause enginedamage.

Saf ety Precautions

Use only the recommended type of spark plug in the recommended heatrange.

Refer to on page .

Remove the seat (page ) and left side cover (page ).Remove the left tank side cover ( ) by removing the bolts ( ).

81

1.2.

921

1002

０６／０９／２７　１１：０７：４２　３１ＨＰ４６００　０１３５　

－－

－－

0.039 0.043 in(1.00 1.10 mm)

0.039 0.043 in (1.00 1.10 mm)

(3)

LEFT SIDE

(3) spark plug cap(4) center electrode

(5) side electrode(6) spark plug gap

(6) (5)

(4)

127

Spark Plug


(cont’d)

Using a wire-type feeler gauge, check the spark plug gap ( ). Ifadjustment is necessary, bend the side electrode carefully.The gap should be:

Discard the spark plug if there is apparent wear or if the insulator iscracked or chipped.

Inspect the electrodes and center porcelain for deposits, corrosion, orcarbon fouling. If the corrosion or deposits are heavy, replace theplug. Clean a carbon or wet-fouled plug with a plug cleaner, ifavailable, or a wire brush. Inspect the spark plug electrodes for wear.The center electrode ( ) should have a flat tip and sharp edges, andthe side electrode ( ) should not be eroded. If the electrodes andinsulator tip appear unusually fouled or burned, we suggest that youcontact your Honda dealer.

Clean any dirt from around the spark plug base.Disconnect the spark plug cap ( ). Take care to avoid damaging thespark plug wire when disconnecting the cap.Using a spark plug wrench provided in the tool kit, remove the sparkplug.

5.

4.

6.

3.

7.

8.

3

45

6

０６／０９／２７　１１：０７：５５　３１ＨＰ４６００　０１３６　

128

Spark Plug


An improperly tightened spark plug can damage the engine. If a plug istoo loose, a piston may be damaged. If a plug is too tight, the threadsmay be damaged.

With the plug washer attached, thread the spark plug in by hand toprevent cross-threading.Tighten the spark plug:

If the old plug is good:1/8 turn after it seats.

If installing a new plug, tighten it twice to prevent loosening:First, tighten the plug:NGK: turn after it seats.DENSO: turn after it seats.Then loosen the plug.Next, tighten the plug again:1/8 turn after it seats.

Connect the spark plug cap. Take care to avoid pinching any cables orwires.Install the remaining parts in the reverse order of removal.

1/2

a)

b)c)

3/4

9.

10.

11.

12.

０６／０９／２７　１１：０８：０５　３１ＨＰ４６００　０１３７　

0.006 in (0.15 mm)0.009 in (0.23 mm)

129

Valve Inspection

Valves



Valve clearance should be:

For those who are mechanically proficient and have the proper tools,instructions on adjusting valve clearances are given in the officialHonda Service Manual. All others should have valves adjusted by yourHonda dealer.

Excessive clearance will cause noise. Insufficient clearance will causeloss of power and possibly damage the valves.

81

intake:exhaust:

０６／０９／２７　１１：０８：１３　３１ＨＰ４６００　０１３８　

(1)

(1) bolt

REAR

130

Spark Arrester



Regular servicing prevents carbon build up (which can diminish engineperformance) and also complies with USDA regulations for regularmaintenance to assure proper function. The spark arrester preventsrandom sparks from the combustion process in your engine fromreaching the environment.

The use of safety glasses is recommended for this procedure.

Because of the possible fire hazard, check that there are no combustiblematerials in the area before purging the spark arrester.

The spark arrester must be serviced every 100 operating hours tomaintain its efficiency.

Reinstall the bolt securely.

Start the engine and rev it up approximately twenty times whilemomentarily creating exhaust system back pressure by blocking theend of the muffler with a shop towel.Stop the engine and allow the exhaust pipe to cool.

Remove the bolt ( ).

Select a well-ventilated area free of combustible materials and makesure the exhaust pipe is cool.

1.

2.3.

4.5.

1

81

０６／０９／２７　１１：０８：２３　３１ＨＰ４６００　０１３９　

Honda DOT 4 Brake Fluidbrake fluid

131

Brake Fluid Recommendation

Brakes


The hydraulic disc brakes (front) and single mechanical drum brake(rear) on your ATV dissipate heat generated by the friction of the brakepads on the disc (front) and the brake shoes on the drums (rear) as thewheels are slowed.

As the front brake pads wear, brake fluid level will drop. A leak in thesystem will also cause the level to drop.

There are no adjustments to perform, but fluid level and pad wear mustbe inspected periodically. The system must be inspected frequently toensure there are no fluid leaks.

If the right brake lever freeplay does not feel within the normal rangewhile riding, check the brake pads for wear (page ).Worn pads should be replaced. If the pads are not worn beyond therecommended limit, there is probably air in the brake system. See yourHonda dealer to have the air bled from the system.

Hydraulic Disc Front Brake

Mechanical Drum Rear Brake

The recommended brake fluid is Honda DOT 4 Brake Fluid, or anybrake fluid of equal quality and performance. Use fresh brake fluidfrom a sealed container. Be sure to read the label before opening thesealed container. An opened container may be contaminated or mayhave absorbed moisture from the air.

If the rear brake lever/parking brake lever or brake pedal freeplay doesnot feel within the normal range while riding, check the brake shoes forwear (page ).

134

139

０６／０９／２７　１１：０８：３４　３１ＨＰ４６００　０１４０　

(1)

RIGHT HANDLEBAR

(1) LOWER level mark

132

Fluid Level Inspection

Brakes


Saf ety Precautions

Brake f luid can damage plastic and painted surf aces. Handle with care.

Refer to on page .

With the ATV in an upright position, check the fluid level.It should be above the LOWER level mark ( ). If the level is at orbelow the LOWER level mark, check the brake pads for wear(page ).

Worn brake pads should be replaced. If the pads are not worn, have yourbrake system inspected for leaks.

If your inspection indicates a low fluid level, have your Honda dealeradd the recommended fluid.

Do not add or replace brake fluid, except in an emergency. If you doadd fluid, have your Honda dealer check the system as soon as possible.

1

81

134

０６／０９／２７　１１：０８：４５　３１ＨＰ４６００　０１４１　

133

Other Inspections

Brakes


Wipe up spills immediately. Avoid contact with skin or eyes. In case ofcontact, wash thoroughly and call a doctor immediately if it contactsyour eyes.

Make sure there are no fluid leaks.Check for deterioration or cracks in the hoses and fittings. If the hosesare worn or cracked, have them replaced by your Honda dealer.

０６／０９／２７　１１：０８：５２　３１ＨＰ４６００　０１４２　

(1)(2)

(2) edge of reference mark

RIGHT FRONT (Left side similar)

(1) wear indicator

134

Brake Pad Wear

Brakes



Brake pad wear will depend upon the severity of usage and ridingconditions. The pads will wear faster in wet or muddy conditions.Inspect the pads visually during all regular service intervals to determinethe pad wear.

Always inspect both pads in both the right and left front brake calipers.

Check the wear indicator ( ). If the wear indicator aligns with the edgeof the reference mark ( ), both pads must be replaced, see your Hondadealer for this replacement.

81

12

０６／０９／２７　１１：０９：００　３１ＨＰ４６００　０１４３　

－－

－－

9/16 13/16 in(15 20 mm)

9/16 13/16 in (15 20 mm)

(1) rear brake pedal

(1)RIGHT SIDE

135

Rear Brake Pedal Freeplay

Brakes


Measure the distance the rear brake pedal ( ) moves before the brakestarts to take hold. Freeplay, measurement at the tip of the end of thepedal, should be:

If necessary, adjust to the specified range.

Inspection1

０６／０９／２７　１１：０９：０９　３１ＨＰ４６００　０１４４　

(2)

(3)(2) brake pedal adjusting nut(3) brake arm pin

RIGHT REAR

136

Brakes


Adjustment

Turn the brake pedal adjusting nut ( ), located on the brake operatingrod at the rear of the frame. Make sure the cutout on the adjusting nut isproperly seated on the brake arm pin ( ).

2

3

０６／０９／２７　１１：０９：１５　３１ＨＰ４６００　０１４５　

－－

－－

9/16 13/16 in(15 20 mm)

9/16 13/16 in (15 20 mm)

LEFT HANDLEBAR

(1)

(1) rear brake lever/parking brake lever

137

Rear Brake Lever Freeplay

Brakes


If necessary, adjust to the specified range.

InspectionMeasure the distance the rear brake lever/parking brake lever ( ) movesbefore the brake starts to take hold. Freeplay, measurement at the tip ofthe end of the brake lever, should be:

1

０６／０９／２７　１１：０９：２４　３１ＨＰ４６００　０１４６　

(2) brake lever adjusting nut(3) brake arm pin

RIGHT REAR

(3)

(2)

138

Other Inspections

Brakes


Adjustment

Turn the brake lever adjusting nut ( ), located on the brake operatingrod at the rear of the frame. Make sure the cutout on the adjusting nut isproperly seated on the brake arm pin ( ).

Check that the brake lever and brake pedal assemblies are positionedproperly and the securing bolts are tight.Make sure that the brake cables, brake arm, spring, and fasteners arein good condition.

2

3

０６／０９／２７　１１：０９：３２　３１ＨＰ４６００　０１４７　

(3) reference mark

(1)

(2)

(3)

RIGHT REAR

(1) arrow(2) brake arm

139

Brake Shoe Wear

Brakes



The rear brake is equipped with an external brake wear indicator that letsyou check brake wear without disassembly. Application of the brakecontrol causes the arrow on the brake arm to move toward a referencemark on the brake panel.

Replace the brake shoe if the arrow aligns with the reference mark( ) on the brake panel upon full application of the brake. Ifreplacement is necessary, see your Honda dealer.

Apply the brake control and check the movement of the arrow ( ) onthe brake arm ( ).

1.

2.

81

12

3

０６／０９／２７　１１：０９：４０　３１ＨＰ４６００　０１４８　

(2)

RIGHT SIDE

((AA))

((BB))

(1)

(1) rear brakelight switch(2) adjusting nut

140

Brakelight Switch Adjustment

Brakes


Saf ety Precautions

Rear Brake Pedal Freeplay

Refer to on page .

Rear Brake Only:Check the operation of the rear brakelight switch ( ) at the right sidebehind the engine from time to time. The brakelight should turn on at0.6 in (15 mm) of pedal stroke. See , page

. Adjustment is done by turning the adjusting nut ( ). Turn the nutin direction ( ) if the switch operates too late and in direction ( ) if theswitch operates too soon.

1

2A

81

135B

０６／０９／２７　１１：０９：４８　３１ＨＰ４６００　０１４９　

(1)

RIGHT REAR

(1) rear brake drain bolt

141

Draining Water from Brakes

Brakes



Make sure the engine is off and the parking brake is set.Remove the rear brake drain bolt ( ) from the bottom of the rearbrake panel.If any water drains, the brake seals must be replaced by your Hondadealer as soon as possible.

1.2.

81

1

０６／０９／２７　１１：０９：５８　３１ＨＰ４６００　０１５０　

Using tires that are excessively worn orimproperly inflated can cause a crash in whichyou can be seriously hurt or killed.

Follow all instructions in this owner’s manualregarding tire inflation and maintenance.

142

Tires


To safely operate your ATV, your tires must be the proper type and size,in good condition with adequate tread, and correctly inflated.

This ATV is equipped with low pressure tubeless tires. Although thetires are designed specifically for off-road use, they are not immune topunctures. Always select your riding area with care.

The following pages give detailed information on how and when tocheck your air pressure, how to inspect your tires for wear and damage,and our recommendations for tire repair and replacement.

０６／０９／２７　１１：１０：０４　３１ＨＰ４６００　０１５１　

143

Air Pressure

Tires



Properly inflated tires provide the best combination of handling, treadlife, and riding comfort. Generally, underinflated tires wear unevenly,adversely affect handling, and are more likely to fail from beingoverheated. Overinflated tires make your ATV ride harshly, are moreprone to damage from surface hazards, and wear unevenly.

Make sure the air valve caps are secure. If necessary, install a new cap.

81

０６／０９／２７　１１：１０：１０　３１ＨＰ４６００　０１５２　

－－

3.6 psi (25 kPa ,0.25 kgf/cm )

3.6 psi (25 kPa ,0.25 kgf/cm )

3.6 psi (25 kPa ,0.25 kgf/cm )

3.6 psi (25 kPa ,0.25 kgf/cm )W

ITH

CARG

ON

OCA

RGO

FRONT REAR

RECOMMENDEDPRESSURE

RECOMMENDEDPRESSURE

144

Tires


Always check air pressure when your tires are ‘‘cold.’’ If you check airpressure when your tires are ‘‘warm’’ even if your ATV has only beenridden for a few miles the readings will be higher. If you let air out ofwarm tires to match the recommended cold tire pressures, the tires willbe underinflated. Be sure to check tire pressure at the riding site, sincechanges in altitude can affect air pressure.

The recommended ‘‘cold’’ tire pressures are:

０６／０９／２７　１１：１０：１９　３１ＨＰ４６００　０１５３　

Operating this ATV with improper tires, or withuneven tire pressure may cause loss of control,and you could be seriously injured or killed.

Always use the size and type tires specified inthis owner’s manual for this vehicle.Always maintain proper tire pressure asdescribed in this owner’s manual.

145

Inspection

Tires


Saf ety Precautions

A manually operated tire pump should be used rather than the highpressure system found in service stations. This will minimize thepossibility of tire damage from overinflation. If you use a high pressuresystem at a service station, add air in small amounts and check thepressure increase frequently to prevent possible tire damage fromoverinflation.

Refer to on page .

Whenever you check the tire pressures, you should also look for:Bumps or bulges in the side of the tire or the tread. Replace any tirethat has a bump or bulge.Cuts, slits, or cracks in the tires. Replace the tire if you can see fabricor cord.

Excessive tread wear.Nails or other foreign objects embedded in the side of the tire or tread.

81

０６／０９／２７　１１：１０：２９　３１ＨＰ４６００　０１５４　

NEW Replace

NEWReplace

3/16 in

(4 mm)

3/16 in

(4 mm)

3/16 in (4 mm)3/16 in (4 mm)

frontrear

(1) groove depth(2) wear indicator

(3) wear indicatorlocation mark

(1) (3)

(2)

FRONT

REAR

146

Tires


Also, if you hit a pothole or other hard object while riding, stop as soonas you safely can and carefully inspect the tires for damage.

Tread Wear

For best performance, you should replace a tire before the tread depth atthe center reaches the following limits:

To check the condition of a tire tread, measure the groove depth ( ) inthe center of the tire, or check the wear indicator ( ).2

1

０６／０９／２７　１１：１０：３９　３１ＨＰ４６００　０１５５　

147

Tire Repair

Tires


Saf ety Precautions

If You Have a Flat Tire,

Refer to on page .

A temporary repair can sometimes be made in an emergency situation.However, since a temporary repair may not hold, you must ride veryslowly, preferably without any cargo, and have the tire replaced orpermanently repaired as soon as possible. (For more information ontemporary repairs, see page .)

A tire that is repaired, either temporarily or permanently, will have lowerspeed and performance limits than a new or undamaged tire.

If you have a tire professionally repaired at a non-Honda facility, werecommend that you have the work checked by your Honda dealer.

A permanent repair, such as an internal plug patch, can be made if a tirehas only a small puncture in the tread area. However you may not beable to safely carry as much weight. If you choose to have a tire repaired,be sure the repair work is performed by a professional.

81

177

０６／０９／２７　１１：１０：４８　３１ＨＰ４６００　０１５６　

× ★★× ★★

AT24 8-12AT24 10-11

MAXXIS M977MAXXIS M978

Installing improper tires on your ATV can affecthandling and stability. This can cause a crash inwhich you can be seriously hurt or killed.

Always use the size and type of tiresrecommended in this owner’s manual.

frontrear

148

Tire Replacement

Tires



The tires that came on your ATV were designed to match theperformance capabilities of your ATV and provide the best combinationof handling, braking, and comfort.

It is best to replace all four tires, however if that is not possible, youmust replace the tires in pairs (front or rear) with tires of the same sizeand type as the originals. Never replace just one tire.

The recommended tires for your ATV are:

When you replace a tire, remember:Have the tire replaced by your Honda dealer if possible.If you have a tire professionally replaced at a non-Honda facility, werecommended that you have the work checked by your Honda dealer.

81

０６／０９／２７　１１：１１：００　３１ＨＰ４６００　０１５７　

(1) engine guard

(1) (2)

(2) skid plate


Engine Guard & Skid Plate


The engine guard ( ) protects the frame and engine crankcase.The skid plate ( ) protects the rear final gear case. Check the guard andplate for cracks, damage or looseness at intervals shown in theMaintenance Schedule.

Have the engine guard and skid plate replaced if they are cracked ordamaged. If the guard and plate bolts are loose, tighten them securely.

1

81

2

０６／０９／２７　１１：１１：０９　３１ＨＰ４６００　０１５８　

(1)

FRONT

(1) rubber driveshaft boots

150

Driveshaft Boots (TRX420FM only)



Check the rubber driveshaft boots ( ) for damage or leaking grease. Ifnecessary, have your Honda dealer replace them.

1

81

０６／０９／２７　１１：１１：１５　３１ＨＰ４６００　０１５９　

(1) (2)

(1) rubber propeller shaft boots (TRX420FM only)(2) rubber yoke joint boot


Propeller Shaft Boots &Yoke Joint Boot


Check the rubber propeller shaft boots ( ) and rubber yoke joint boot( ) for damage or leaking grease. If necessary, have your Honda dealerreplace them.

81

12

０６／０９／２７　１１：１１：２２　３１ＨＰ４６００　０１６０　

152

WARNING:Wash your hands after handling.

Battery


Your battery is a maintenance-f ree type and can be permanentlydamaged if the cap strip is removed.

Battery Charging,

Battery Storage,

Your ATV has a maintenance-free type battery. You do not have tocheck the battery electrolyte level or add distilled water as you wouldwith a conventional-type battery.

Electrical accessories use current from the battery –– even when theignition is OFF. Limited operation also allows the battery to discharge.If you have electrical accessories on your ATV –– or do not ridefrequently, we recommend that you charge the battery frequently (see

page ).

If you do not expect to ride your ATV for at least two weeks, werecommend you remove the battery –– or at least disconnect the batterycables (negative cable first).

If you plan to store your ATV, see page .

If your battery seems weak and/or is leaking electrolyte (causing slowstarting or other electrical problems), see your Honda dealer.

Battery posts, terminals and related accessories containlead and lead compounds.

156

153

０６／０９／２７　１１：１１：３０　３１ＨＰ４６００　０１６１　

The battery gives off explosive hydrogen gasduring normal operation.

A spark or flame can cause the battery toexplode with enough force to kill or seriouslyhurt you.

Wear protective clothing and a face shield, orhave a skilled mechanic do the batterymaintenance.

153

Battery Storage

Battery


Saf ety Precautions

Battery Charging,

Refer to on page .

If you plan to store your ATV, we recommend you remove the batteryand store it where it can be charged at least every 30 days to maintain itsservice life.

If you do not remove the battery, we recommend disconnecting thebattery cables (negative cable first).

You will get the best storage results from removing the battery and slow(trickle) charging it every 30 days (see page ).

Before you remove the battery, be sure to read all the information thatfollows, as well as the information on the battery label.

156

81

０６／０９／２７　１１：１１：４０　３１ＨＰ４６００　０１６２　

－＋

－＋

UNDER SEAT

(4)

(3)

(2)

(1)

(1) rubber band(2) negative ( ) terminal lead

(3) battery(4) positive ( ) terminal lead

(1)

154

Battery


Make sure the ignition switch is OFF ( ).Removal

The battery is located in a compartment under the seat.

Disconnect the negative ( ) terminal lead ( ) from the battery ( )first, then disconnect the positive ( ) terminal lead ( ).

Release the rings and remove the rubber band ( ).

Remove the seat (page ).Remove the rear fender cover (page ).

1.2.3.4.

35.

11292

12

4

０６／０９／２７　１１：１１：５２　３１ＨＰ４６００　０１６３　

＋－

155

Battery


Charge the battery (see following section), unless you have beenriding regularly.Store your battery in an easy-to-reach location off the floor, in an areaprotected from freezing temperature and direct sunlight.

Slow charge the battery (see following section) once every 30 days.

InstallationReinstall in the reverse order of removal.Be sure to connect the positive ( ) terminal first, then the negative( ) terminal.Check all bolts and other fasteners are secure.

Remove the battery.

Clean the compartment after removing the battery for storage. Dry thecompartment and, if paint is missing, re-paint the area.

6.7.

8.

1.

2.

9.

10.

０６／０９／２７　１１：１２：０２　３１ＨＰ４６００　０１６４　

(1)

(1) ‘‘trickle’’ charger

156

Battery Charging

Battery



Be sure to read the information that came with your battery charger andfollow the instructions on the battery. Improper charging may damagethe battery.

We recommend using a ‘‘trickle’’ charger ( ) for home charging. Theseunits can be left connected for long periods without risking damage tothe battery. However, do not intentionally leave the charger connectedlonger than the time period recommended in the charger’s instructions.

Avoid using an automotive-type battery charger. An automotive chargercan overheat an ATV battery and cause premature damage.

1

81

０６／０９／２７　１１：１２：１１　３１ＨＰ４６００　０１６５　

－－－－

157

General Recommendations

Appearance Care


Saf ety Precautions

High pressure water (or air) can damage certain parts of your ATV.

Frequent cleaning and polishing will keep your Honda looking newerlonger.Frequent cleaning also identifies you as an owner who values his ATV.A clean ATV is also easier to inspect and service.

Refer to on page .

To clean your ATV, you may use:watera mild, neutral detergent and watera mild spray and wipe cleaner/polishera mild spray and rinse cleaner/degreaser and water

Avoid products that contain harsh detergents or chemical solvents thatcould damage the metal, paint, and plastic on your ATV.If your ATV is still warm from recent operation, give the engine andexhaust system time to cool off.Park in a shady area. Washing your ATV in bright sunlight may causethe finish to fade because water droplets intensify the sun’s brightness.Spotting is also more likely because surface water can dry before youhave time to wipe it off.Clean your ATV regularly to protect surface finishes.We recommend the use of a garden hose to wash your ATV. Highpressure washers (like those at coin-operated car washers) candamage certain parts of your ATV.

After cleaning, inspect for damage, wear, and leaks (fuel, oil, coolantand brake fluid).

81

０６／０９／２７　１１：１２：２５　３１ＨＰ４６００　０１６６　

158

Washing Your ATV with a Mild Detergent

Appearance Care



Rinse your ATV thoroughly with cool water to remove loose dirt.

Wash your ATV with a sponge or soft towel. As you wash, check forheavy grime. If necessary, use a mild cleaner/degreaser to remove thegrime.

Dry your ATV with a chamois or a soft towel. Leaving water on thesurface to air dry can cause dulling and water spots. As you dry,inspect for chips and scratches.Start the engine and let it idle for several minutes. The engine heatwill help dry moist areas.As a precaution, ride your ATV at a slow speed and apply the brakesseveral times. This will help dry the brakes and restore normalbraking performance.If the inside of the headlight lens appears clouded immediately afterwashing, it should clear after a few minutes of riding.

Fill a bucket with cool water. Mix in a mild, neutral detergent, such asdish washing liquid or a product made especially for washingmotorcycles or automobiles.

After washing, rinse your ATV thoroughly with plenty of clean waterto remove any residue. Detergent residue can corrode alloy parts.

1.2.

3.

4.

5.

6.

7.

81

０６／０９／２７　１１：１２：３７　３１ＨＰ４６００　０１６７　

Apply a spray cleaner/polish andwipe paint, chrome, glass, andclear plastic.Spray any difficult-to-reach or verydirty areas with a spray cleaner/degreaser.Rinse and dry.Apply a spray cleaner/polish andwipe with a non-abrasive cloth.Use a spray cleaner/degreaser. Ifnecessary, rub with a sponge.Rinse and dry.Apply a spray cleaner/polish andwipe with a non-abrasive cloth.Apply a high quality chrome/aluminum polish and wipe with anon-abrasive cloth.

Dull, corroded chromeor aluminum.

Heavy grime. Oil leaks.Brake dust.

Light road grimes.

Dust and fingerprintsmudges.

ATV condition Recommended Cleaning

159

Spray Cleaning Your ATV

Appearance Care



Avoid using spray cleaner products on the tires or suspensioncomponents.

Suggestions for using spray cleaner(s) follow:

81

０６／０９／２７　１１：１２：４９　３１ＨＰ４６００　０１６８　

160

Finishing Touches

Appearance Care



If a surface on your ATV is chipped or scratched, your Honda dealerhas touch-up paint to match your ATV’s color. Be sure to use yourATV’s color code (page ) when you buy touch-up paint.

After washing your ATV, consider using a commercially-availablespray cleaner/polish or quality liquid or paste wax to finish the job. Useonly a non-abrasive polish or wax made specifically for motorcycles orautomobiles. Apply the polish or wax according to the instructions onthe container.

If the frame has a chip that exposes the metal, first apply primer (toprevent corrosion) and then apply the touch-up paint. Several thinlayers of touch-up paint are better than one thick coat.

193

81

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161

Tips

Tips

Here’s helpful advice on how to prepare for an off-road adventure, howto transport and store your Honda, and how to be an environmentallyresponsible ATV owner.

..........................................................................Preparing for a Ride ...................................................What to Take to the Riding Area .

.............................................................What to Take on the Trail ..................................................................Transporting Your Honda .

..........................................................................Storing Your Honda ..................................................................Preparation for Storage .

..................................................................Removal from Storage .....................................................................You & the Environment .

162162163164166167169170

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162

What to Take to the Riding Area

Preparing for a Ride

Tips

Taking Care of the Unexpected,

A safe and enjoyable ride begins with good planning and preparation.Always ride with at least one other person in case you have trouble, andlet someone know where you’re going and when you expect to return.

Before riding in an unfamiliar area, find out in advance if you needspecial permits, get maps so you can study the terrain, and talk to otherriders who know the area. The Forest Service and the Bureau of LandManagement (USA only), the Ministry of Natural Resources (Canadaonly), riding clubs, and off-road magazines are good sources ofinformation.

Along with your ATV and riding gear, you should take along some toolsand supplies in case you have a problem. For some of the difficultiesyou might encounter, see which beginson page .

We recommend that you always take water, food, a first aid kit, andyour owner’s manual. Other items you should consider loading on yourtruck or trailer include:

a tool kittire repair supplies and tools, and tiresextra parts, control levers, cables, and spark plugswire, duct tape, and ropeextra gasoline

For safety, all refueling should be done at a gas station on the way to theriding area or at your base camp.

171

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163

What to Take on the Trail

Preparing for a Ride

Tips

What you take with you during a ride depends on the kind of terrain,how long you expect to ride, how far you might go from your basecamp or help, and how experienced you or your companions are inmaking repairs.

If you decide to take some tools, spare parts, or other supplies on thetrail, be sure you can carry them safely and know how to use them. Also,be sure to follow the loading guidelines and weight limit (page ).40

０６／０９／２７　１１：１３：２２　３１ＨＰ４６００　０１７２　

164

Transporting Your Honda

Tips

Do not tow your ATV behind a car or other vehicle.

When you transport your ATV, we recommend that you carry thevehicle in its normal operating position (on all four wheels). Do notincline the vehicle upright on its rear end. This can damage the vehicle,and leaking gasoline could be a hazard.

Follow these procedures:Set the parking brake and place the transmission in gear.Turn the fuel valve OFF.

1.2.

０６／０９／２７　１１：１３：３０　３１ＨＰ４６００　０１７３　

(1) front cargo rack(2) rear cargo rack

(3) trailer hitch

(1)

(2)

(3)

165

Transporting Your Honda

Tips

Secure the vehicle with ‘‘tie-down straps’’ in the areas shown.

Using ‘‘tie-down straps’’ in any other areas can damage your ATV.

Suitable ‘‘tie-down straps’’ are available from your Honda dealer.Ordinary rope is not recommended because it can stretch underload.

Rock the vehicle back and forth to make sure the ‘‘tie-down straps’’are tight and the vehicle is secure.

3.

4.

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166

Storing Your Honda

Tips

Honda MotorcycleWinter Storage Guide,

If you won’t be riding for an extended period, such as during the winter,thoroughly inspect your ATV and correct any problem before storing it.That way, needed repairs won’t be forgotten and it will be easier to getyour ATV running again.

For more information about storage, refer to theavailable from your Honda dealer (USA only).

We suggest you perform the following procedures to keep your ATV intop condition. These storage procedures will reduce the deteriorationthat can occur during storage.

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－

167

Preparation for Storage

Storing Your Honda

Tips


(cont’d)

Change the engine oil and filter (page ).Make sure the cooling system is filled with a 50/50% antifreezesolution (page ).Fill the fuel tank. Make sure the fuel fill cap is properly installed.Check that the fuel valve is OFF.

Remove the spark plug cap from the spark plug.Remove the spark plug.Do not connect the spark plug to the spark plug cap.Pour a tablespoon (15 20 cc) of clean engine oil into cylinderand cover the spark plug hole with a piece of cloth.With the engine stop switch in the RUN ( ) position, press thestart button several times to crank the engine and distribute the oil.Reinstall the spark plug and spark plug cap.

To prevent rusting in the cylinder, perform the following:

81

1.2.

3.4.5.

110

102

０６／０９／２７　１１：１３：５７　３１ＨＰ４６００　０１７６　

The battery gives off explosive hydrogen gasduring normal operation.

A spark or flame can cause the battery toexplode with enough force to kill or seriouslyhurt you.

Wear protective clothing and a face shield, orhave a skilled mechanic do the batterymaintenance.

168

Storing Your Honda

Tips

Remove the battery and charge it fully. Store it in an area protectedfrom freezing temperatures and direct sunlight. Slow charge thebattery (page ) once a month.

Cover your ATV with a porous material. Avoid using plastic orsimilar non-breathing, coated materials that restrict air flow and allowheat and moisture to accumulate.

Place your ATV on blocks to lift all tires off the floor.

Store your ATV in an unheated area, free of dampness, away fromsunlight, with a minimum of daily temperature variation.

Inflate the tires to their recommended pressures (page ).Wash and dry your ATV. Wax all painted surfaces.

6.

7.8.9.

156

11.10.

144

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－

－

169

Removal from Storage

Storing Your Honda

Tips


Uncover and clean your ATV.

If your ATV has been stored for more than two months ask yourHonda dealer to drain and replace the fuel.

Perform a pre-ride inspection (page ), then test-ride your ATV atlow speeds.

Charge the battery (page ) as required. Install the battery.

If your ATV has been stored for more than four months changethe engine oil (page ).

1.2.

3.

4.5.

81

156

102

35

０６／０９／２７　１１：１４：１５　３１ＨＰ４６００　０１７８　

170

Tread Lightly.

Keep the Noise Down.

Choose Sensible Cleaners.

Recycle Wastes.

You & the Environment

Tips

Owning and riding an ATV can be enjoyable, but you must do your partto protect nature. When you show respect for the land, wildlife, andother people, you also help preserve the sport of off-road riding.

Following are tips on how you can be an environmentally-responsibleATV owner.

Stay on existing roads and trails, avoid surfaces thatare easily damaged, and ride only in areas approved for off-roadvehicles.

Loud vehicles can be offensive. Ride asquietly as possible, don’t remove your spark arrester, and don’tmodify the muffler or any other part of your air intake and exhaustsystems. Such modifications not only increase noise, they also reduceengine performance and may be illegal.

Use a biodegradable detergent when youwash your ATV. Avoid aerosol spray cleaners that containchlorofluorocarbons (CFCs) which damage the atmosphere’sprotective ozone layer. Don’t throw cleaning solvents away; see thefollowing guidelines for proper disposal.

It’s illegal and thoughtless to put used engine oil inthe trash, down a drain, or on the ground. Used oil, gasoline, andcleaning solvents contain poisons that can hurt refuse workers andcontaminate our drinking water, lakes, rivers, and oceans. Beforechanging your oil, make sure you have the proper containers. Put oiland other toxic wastes in separate sealed containers and take them to arecycling center. Call your local or state office of public works orenvironmental services to find a recycling center in your area, and toget instructions on how to dispose of non-recyclable wastes.

０６／０９／２７　１１：１４：２３　３１ＨＰ４６００　０１７９　

171

Taking Care of the Unexpected


Preparing f or a Ride

With all the challenges you can encounter off-road, there’s a chance thatsometime something may go wrong. This section gives practical adviceto help you deal with a wide range of problems. Take time to read thissection before you ride. Also review the tips in(page ).

............................................................................General Guidelines ..................................................If Your Engine Quits or Won’t Start .

.........................................................If the Battery Is Low (or Dead) .

.....................................................................If You Have a Flat Tire .............................If the High Coolant Temperature Indicator Lights .

.................................................................................If a Fuse Blows .......................................................................................If You Crash .

......................................................................If You Lose Your Key .

.........................................................................If a Component Fails .

162

172174177180182186187188189

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－－

172

General Guidelines



Keeping your ATV well-maintained is the best way to reduce thepossibility of having a problem while riding. However, problems canarise even with well-maintained machines.

Remember to take along your owner’s manual, the tool kit that camewith your ATV, and any other items (such as tire repair supplies andadditional tools) that might help you solve a problem on your own.

If something goes wrong during a ride, the first thing to do is stop assoon as you safely can. Do not continue riding if you have a flat tire, oryou hear an unusual noise, or your ATV just doesn’t feel right. If youcontinue riding, you could cause more damage and endanger your ownsafety.

After a stop, take time to assess the situation. Carefully inspect yourATV to identify the problem, then consider your options before youdecide what to do.

If a problem is relatively minor and you have the tools, supplies, andskills to make a permanent repair, you may be able to fix it on the trailand continue riding. Or, you may be able to make a temporary repairthat allows you to slowly ride back to your base where you can make apermanent repair or get help.

When a problem is more serious or you don’t have the tools, supplies,experience, or time to deal with it you need to choose the safest way toget yourself and your ATV back to base. For example, if you are closeenough, you (or you and another person) might be able to push it back.

０６／０９／２７　１１：１４：４２　３１ＨＰ４６００　０１８１　

173



Should you ever have a problem while riding, please follow theseguidelines:

Always put personal safety first.Take time to assess the situation and your options before decidingwhat to do.If the problem is relatively minor and you have the tools, supplies,and skills to make a temporary repair, be sure to have permanentrepairs made as soon as possible.Do not continue riding if you are hurt or your ATV is not in saferiding condition.

Additional recommendations for specific problems follow.

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－－

174 Taking Care of the Unexpected

If Your Engine Quits or Won’t Start

Starter motor doesn’t operate

Starter motor works, but the engine won’t start

Proper operation and maintenance can prevent starting and engineperformance problems. In many cases, the cause of the problem may bea simple operational oversight.

If you have a problem starting the engine or experience poor engineperformance the following information may help you. If you can’tcorrect the problem, see your Honda dealer.

If your ATV won’t start, listen as you press the start button. If you don’thear the starter motor turning, refer to thesymptom. If you can hear the starter motor working normally, refer tothe symptom.

０６／０９／２７　１１：１４：５５　３１ＨＰ４６００　０１８３　

SYMPTOM:POSSIBLE CAUSEignition switch OFF

WHAT TO DOTurn the ignition switch ON.

Charge the battery (page ). Ifcharging doesn’t help, see yourHonda dealer.

weak batteryTighten the battery terminal bolts.loose battery cables

Install the spark plug cap securely. Ifthe engine still won’t start, see yourHonda dealer.

loose orunconnected sparkplug cap

flooded engine See (page ).out of fuel Fill the fuel tank.POSSIBLE CAUSE WHAT TO DO

SYMPTOM:

If all possible causes are negative,the starter motor may be faulty. Seeyour Honda dealer.

faulty starter motor

low (or dead) battery Charge the battery (page ).If charging doesn’t help, see yourHonda dealer.

battery lead loose Tighten the battery lead.

blown fuse Replace with a new fuse of thesame rating (page ).

transmission not inneutral

Shift into neutral.

engine stop switchOFF

Slide the engine stop switch to RUN.

182

156

54

156

Starter motor doesn’t operate.

Starter motor works, but the engine won’tstart.

Flooded Engine

175



０６／０９／２７　１１：１５：１８　３１ＨＰ４６００　０１８４　

SYMPTOM:POSSIBLE CAUSE WHAT TO DOhigh coolanttemperature

Check the high coolant temperatureindicator. Refer to

page .runs erratically,misfires

See your Honda dealer.

blubbers (rich fuelmixture)


sooty exhaust (richfuel mixture)


detonates or pingsunder load

If applicable, switch to therecommended octane gasoline(page ) or change your brand ofgasoline. If the problem persists, seeyour Honda dealer.

afterfires (backfires) See your Honda dealer.pre-ignition (runs onafter ignitionswitched OFF)


94

180

Engine starts, but runs poorly.

If the HighCoolant Temperature IndicatorLights,

176



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177

If You Have a Flat Tire


How you handle a flat tire on the trail depends on how serious the tiredamage is, and what tools and supplies you have with you.

If you have a slow leak or a minor puncture, use the plug method tomake a temporary repair. (The plug method is applied from the outsideof the tire and is the same as that for conventional tubeless tires.)

A plug-type repair kit, available at most auto parts stores or servicestations, provides a plug, an installation tool, tire cement, and aninstruction sheet. Follow the instructions provided with the repair kit tomake a temporary repair.

As soon as possible, have the tire permanently repaired by your Hondadealer. Any tire that cannot be repaired should be replaced.

Whenever the ATV is to be operated far from service facilities oravailable transportation, we recommend that you carry a tire pump and arepair kit with the vehicle.

If the leak is more serious, or a temporary repair doesn’t hold, the tiremust be replaced. The tire will also need to be replaced if it is damaged(page ). Replacing a tire involves removing and re-installing thewheel (page ).

If you are unable to repair a flat tire on the trail, you will need to sendfor help. We strongly recommend that you do not try to ride with a flattire. The ATV will be hard to handle, and if the tire comes off the rim, itmay lock up the wheel and cause you to crash.

148178

０６／０９／２７　１１：１５：４３　３１ＨＰ４６００　０１８６　

(1) wheel nuts (2) wheel rim

(1)

(2)(1)

178

Emergency Wheel Removal/Installation




Park your ATV on a firm, level surface.Raise the front (or rear) wheels off the ground and place a supportblock under the vehicle.

Remove the wheel.

Removal

Remove the wheel nuts ( ).1

1.2.

3.4.

81

Avoid getting grease, oil, or dirt on the front brake disc or pad surfaceswhen removing and installing each wheel. Any contamination cancause poor brake performance or rapid pad wear after reassembly.

０６／０９／２７　１１：１５：５５　３１ＨＰ４６００　０１８７　

47 lbf·ft (64 N·m , 6.5 kgf·m)

179



InstallationPosition the wheel.Position the wheel nuts so that the tapered sides face the wheel rim( ).

If a torque wrench was not used for installation, see your Honda dealeras soon as possible to verify proper assembly. Improper assembly maylead to loss of braking capability.

Tighten the wheel nuts in a crisscross (rather than a circular) patternto the specified torque:

1.2.

3.2

０６／０９／２７　１１：１６：０３　３１ＨＰ４６００　０１８８　


If the High Coolant TemperatureIndicator Lights

Continuing to ride with high coolant temperature or an overheatedengine can cause serious engine damage.

If the indicator comes on while you’re riding, don’t ignore it. Pull safelyto a stop. Stop the engine as soon as it’s safe to do so, and let it cool.

If there’s no obvious problem, leave the engine on so the fan andcoolant circulating system can continue working. Monitor the highcoolant temperature indicator. The indicator may turn off after a briefstop with no load on the engine.

Check for any restriction of air flow to the radiator.

A steaming engine indicates a coolant leak. Shut the engine off andwait until the steaming stops. Look for a leak, but don’t touch theengine or radiator system. Let everything cool off first.

Check the radiator fan.If the fan is not working, turn the engine off. Open the fuse box (page

) and check the radiator fan fuse. If the fuse is blown, replace itwith the proper (same rating) spare fuse. Start the engine. If the highcoolant temperature indicator comes on and stays on, turn the engineoff.If the radiator fan is working, visually check the coolant level in thereserve tank, located under the rear fender. It isn’t necessary to touchthe radiator system.

Normally, the high coolant temperature indicator will only lightmomentarily when you turn the ignition ON ( ). Occasionally, it mayflicker at or near idling speed.High coolant temperature may be caused by restriction of air flow to theradiator (such as mud caked on the radiator), extended idling, an oil leak,a coolant leak, a low oil level, a low coolant level, or extended operationunder adverse conditions.

183

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－

181Taking Care of the Unexpected

If the High Coolant TemperatureIndicator Lights

If the reserve tank is low or empty, don’t ride without adding coolant(page ). After adding coolant, turn the engine on and check thehigh coolant temperature indicator.If the indicator doesn’t turn off, do not ride. The engine needs repair.Transport your ATV to a Honda dealer (page ).If the temperature drops to normal, check the coolant level. If it hasgone down, add more coolant.Check for an oil leak.Check the oil level. If necessary, add the recommended oil (page )to the upper level mark. If you must leave your ATV to get oil, secureit as much as possible.

If you are able to resume riding, continue to monitor the high coolanttemperature indicator frequently.

If there is an oil leak do not ride the ATV until the leak is repaired byHonda dealer (page ).

If there’s a mild coolant leak, you can ride for awhile, carefullywatching the indicator. Be prepared to stop and add more coolant orwater. If the leak is bad, transport your ATV to a Honda dealer (page

).

Start the engine, and check that the high coolant temperature indicatorgoes off.

110

164

164

164

100

０６／０９／２７　１１：１６：２３　３１ＨＰ４６００　０１９０　

×15 A10 A 3

30 Amain fuseother fuse

(1)

(1) blown fuse

182

If a Fuse Blows


All of the electrical circuits on your ATV have fuses to protect themfrom damage caused by excess current flow (short circuit or overload).

If something electrical on your ATV stops working, the first thing youshould check for is a blown fuse ( ).Check all the fuses before looking elsewhere for another possible causeof the problem. Replace any blown fuses and check componentoperation.

Recommended Fuses

The main fuse and the circuit fuses are located in the batterycompartment.

1

０６／０９／２７　１１：１６：３３　３１ＨＰ４６００　０１９１　

UNDER SEAT

(2) (4)

(2) main fuse(3) fuse box cover

(4) spare main fuse

(3)

183

If a Fuse Blows


Main Fuse Access

Pull the main fuse out.If it is blown, install the spare main fuse ( ).

To access the main fuse ( ), remove the fuse box cover ( ).


To prevent an accidental short circuit, turn the ignition switch OFF( ) before checking or replacing the fuses.

(cont’d)

Remove the rear fender cover (page ).

1.

2.3.4.

5.

92

2112

3

4

０６／０９／２７　１１：１６：４４　３１ＨＰ４６００　０１９２　

(6) spare fuses(5) circuit fuses

(5)

(6)

184

If a Fuse Blows


Replacing a f use with one that has a higher rating greatly increases thechance of damage to the electrical system.

Circuit Fuse Access

To check or replace a circuit fuse ( ), pull the old fuse out of itsretaining clips.If the fuse is blown, replace it with a spare fuse ( ) of the same rating.

If you do not have a replacement fuse with the proper rating for thecircuit, install one with a lower rating.

Install the fuse box cover.

Install the seat.Install the rear fender cover.

6

56.

7.8.9.

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185

If a Fuse Blows


If you do not have a spare fuse and you cannot ride the ATV withoutfixing the problem, take a fuse of the same rating or a lower rating fromone of the other circuits that you can do without temporarily.

If you replace a blown fuse with a spare fuse that has a lower rating,replace the fuse with the correct rating as soon as you can. Alsoremember to replace any spare fuses that were installed.

If the replacement fuse of the same rating burns out in a short time,there is probably a serious electrical problem on your ATV. Leave theblown fuse in that circuit and have your ATV checked by your Hondadealer.

０６／０９／２７　１１：１６：５９　３１ＨＰ４６００　０１９４　

186

If You Crash


Personal safety is your first priority after an accident. If you or anyoneelse has been injured, take time to assess the severity of the injuries andwhether it is safe to continue riding. If you cannot ride safely, sendsomeone for help. Do not ride if you will risk further injury.

If you decide you are capable of riding safely, carefully inspect yourATV for damage and determine if it is safe to ride. Check the tightnessof critical nuts and bolts securing such parts as the handlebar, controllevers, brakes, and wheels.

If there is minor damage, or you are unsure about possible damage butdecide to try riding the ATV back to your base, ride slowly andcautiously.

Sometimes, crash damage is hidden or not immediately apparent. Whenyou get home, thoroughly check your ATV and correct any problemsyou find. Also, be sure to have your Honda dealer check the frame andsuspension after any serious crash.

０６／０９／２７　１１：１７：０５　３１ＨＰ４６００　０１９５　

(1) key number

(1)

187

If You Lose Your Key


Be sure to record your key number ( ) in the Quick Reference sectionat the rear of the manual. You’ll need this number to have a duplicatekey made.

If you lose your key and aren’t carrying a duplicate, either get yourspare or have one made. If you don’t know your key number, call thedealer you purchased your Honda from. They may have it listed in theirrecords. If they don’t, transport your ATV to them or the nearest Hondadealer. The dealer will probably have to remove the ignition switchassembly to find the key number so they can make a key for you.

1

０６／０９／２７　１１：１７：１１　３１ＨＰ４６００　０１９６　

188

If the Battery Is Low (or Dead)


Jump starting is not recommended, especially if you use an automobilebattery. The greater amperage of an automobile battery when the carengine is running can damage your ATV’s electrical system.

Bump starting is also not recommended.

If you can’t charge the battery or it appears unable to hold a charge,contact your Honda dealer.

０６／０９／２７　１１：１７：１６　３１ＨＰ４６００　０１９７　

189

If a Component Fails


The brake levers or pedal, control cables, and other components can bedamaged as you ride in dense brush or over rocky terrain. Making atrailside repair depends on how serious the damage is and what tools andsupplies you have with you.

If any component of the brake system is damaged, you may be able toride carefully back to your base using the other brake components forslowing or stopping.If you damage a throttle cable or other critical component, your ATVmay be unsafe to ride. Carefully assess the damage and make anyrepairs that you can. But if there is any doubt, it’s best to beconservative and safe.

０６／０９／２７　１１：１７：２１　３１ＨＰ４６００　０１９８　


０６／０９／２７　１１：１７：２４　３１ＨＰ４６００　０１９９　

191

Technical Information


This section contains dimensions, capacities, and other technical data,plus information on government requirements and how to break-in yourATV.

........................................................................Vehicle Identification .....................................................................................Specifications .

..........................................................................Break-in Guidelines ..................................................................Emission Control Systems .

..............................................................................Oxygenated Fuels .

192194198199203

０６／０９／２７　１１：１７：３２　３１ＨＰ４６００　０２００　

(1)

(2)

(2) engine number

FRONT

LEFT SIDE

(1) VIN

192

Serial Numbers

Vehicle Identification


The VIN and engine serial numbers and key number may be requiredwhen ordering replacement parts. You may record these numbers in theQuick Reference section at the rear of this manual.

The VIN ( ) is stamped on the front of the frame.

The engine number ( ) is stamped on the upper side of the rearcrankcase.

1

2

０６／０９／２７　１１：１７：４２　３１ＨＰ４６００　０２０１　

UNDER SEAT

(1)

(1) color label

193

Color Label & Code

Vehicle Identification


The color label ( ) is attached to the frame under the seat. Remove theseat (page ) to check the label.

The color code is helpful when ordering replacement parts. You mayrecord the color and code in the Quick Reference section at the rear ofthis manual.

192

０６／０９／２７　１１：１７：４９　３１ＨＰ４６００　０２０２　

80.9 in (2,055 mm)46.1 in (1,172 mm)45.2 in (1,148 mm)45.1 in (1,146 mm)

49.2 in (1,249 mm)6.5 in (165 mm)

unleaded gasoline, pump octanenumber of 86 or higher3.62 US gal (13.7 )

0.74 US gal (2.8 )

3.3 US qt (3.1 )

2.9 US qt (2.7 )API Service Classification SG orhigher except oils labeled as energyconserving on the circular APIservice label, SAE 10W-30, JASO T903 standard MA,Pro Honda GN4 4-stroke oil (USA &Canada) or Honda 4-stroke oil(Canada only), or an equivalentmotorcycle oil

49.4 in (1,256 mm)

including reserve

after disassembly:

after draining:

……TRX420TM……TRX420FM……TRX420TM……TRX420FM

overall lengthoverall widthoverall height

wheelbase

ground clearance

fuelrecommendationfuel tank capacity

fuel tank reserveengine oil capacity

engine oilrecommendation

Dimensions

Fuel & Lubricants

194

Specifications


０６／０９／２７　１１：１８：０６　３１ＨＰ４６００　０２０３　

× ×

－－±

Pro Honda HP Coolant or anequivalent high quality ethyleneglycol antifreeze containingcorrosion protection inhibitorsspecifically recommended for usein aluminum engines1.6 US qt (1.5 )

operator only485 lbs (220 kg)rider, all cargo and accessories

25.6 cu-in (420 cm )3.41 2.81 in (86.5 71.5 mm)


0.006 in (0.15 mm)

0.039 0.043 in (1.00 1.10 mm)1,400 100 rpm

9.8 : 1

0.009 in (0.23 mm)

orintake:exhaust:

cooling systemrecommendation

cooling systemcapacity

passenger capacitymaximum weightcapacity

displacementbore & strokecompression ratiospark plug(standard)valve clearance(cold)spark plug gapidle speed

Capacities

Engine Specifications

Fuel & Lubricants (cont’d)

195

Specifications


０６／０９／２７　１１：１８：２５　３１ＨＰ４６００　０２０４　

°°

× ★★× ★★

6.343.00.99 in (25.1 mm)0.37 in (9.5 mm)AT24 8-12AT24 10-113.6 psi (25 kPa , 0.25 kgf/cm )

2.103

3.2313.1543.8572.2351.5711.1780.8484.831shaft

MAXXIS M977MAXXIS M978

1.818

…TRX420TM…TRX420FM

…TRX420TM…TRX420FM

(TRX420FM only)

caster

trail

tire size, fronttire size, reartire pressure, front &rear (cold)

final drive

final reductionsecondary reductionprimary reduction

reverse5th4th3rd2nd1strearfront

transmission ratio

Chassis & Suspension

Power Transmission

196

Specifications


０６／０９／２７　１１：１８：４８　３１ＨＰ４６００　０２０５　

×

－

×

12 V 1.7 W

12 V 30/30 W 2

12 V 12 Ah0.343 kW/5,000 rpm

LED

12 V 1.7 W12 V 1.7 W

12 V 1.7 W12 V 1.7 W

15 A10 A 3

30 A

47 lbf·ft (64 N·m , 6.5 kgf·m)

9 lbf·ft (12 N·m , 1.2 kgf·m)

9 lbf·ft (12 N·m , 1.2 kgf·m)

7 lbf·ft (10 N·m , 1.0 kgf·m)18 lbf·ft (25 N·m , 2.5 kgf·m)

(TRX420FM only)

batterygenerator

brake/tail lightneutral indicator

headlight

reverse indicator

PGM-FI indicator4WD indicator

othermain

high coolanttemperature indicator

wheel nuts

differential oil drainplug

rear final gear caseoil drain bolt

engine oil filter coverbolts

engine oil drain bolt

(TRX420FM only)

Electrical

Lights

Fuses

Torque Specification

197

Specifications


０６／０９／２７　１１：１９：０８　３１ＨＰ４６００　０２０６　

198

Break-in Guidelines


Help assure your ATV’s future reliability and performance by payingextra attention to how you ride during the first operating day or 15 miles(25 km).

During this period, avoid full-throttle starts, rapid acceleration, andconstant RPM operation.

０６／０９／２７　１１：１９：１３　３１ＨＰ４６００　０２０７　

(1)

(1) vehicle emission control infomation label

RIGHT FRONT

199

Emission Control Systems


Exhaust Emission Requirements (USA only)The U.S. Environmental Protection Agency (EPA) and the CaliforniaAir Resources Board (CARB) require that your ATV comply withapplicable exhaust emission standards during its useful life, whenoperated and maintained according to the instructions provided.

The Vehicle Emission Control Information Label ( ) is attached on theright side of the frame.

1

０６／０９／２７　１１：１９：１９　３１ＨＰ４６００　０２０８　

200

Source of Exhaust Emissions

Crankcase Emission Control System

Exhaust Emission Control System



The combustion process produces carbon monoxide (CO), oxides ofnitrogen (NOx) and hydrocarbons (HC). Control of hydrocarbons andoxides of nitrogen is very important because, under certain conditions,they react to form photochemical smog when subjected to sunlight.Carbon monoxide does not react in the same way, but it is toxic.

Honda Motor Co., Ltd. utilizes various systems to reduce carbonmonoxide, oxides of nitrogen and hydrocarbons.

The exhaust emission control system includes a PGM-FI system.No adjustment to this system should be made although periodicinspection of the components is recommended.The exhaust emission control system is separate from the crankcaseemission control system.

The engine is equipped with a closed crankcase system to preventdischarging crankcase emissions into the atmosphere. Blow-by gas isreturned to the combustion chamber through the air cleaner.

０６／０９／２７　１１：１９：２７　３１ＨＰ４６００　０２０９　

201



Problems That May Affect ATV Exhaust EmissionsIf you are aware of any of the following symptoms, have the vehicleinspected and repaired by your Honda ATV dealer.

Symptoms:Hard starting or stalling after startingRough idleMisfiring or backfiring during accelerationAfter-burning (backfiring)Poor performance (driveability) and poor fuel economy

Federal regulations prohibit removing or disabling a device or elementof design that may affect your engine’s emission performance unlessyour ATV will be used exclusively in competition. If you modify yourengine for use in sanctioned competition events, you must deface ordestroy the emission control information label.

1.2.3.4.5.

０６／０９／２７　１１：１９：３４　３１ＨＰ４６００　０２１０　

202


Noise Emission Control System


TAMPERING WITH THE NOISE CONTROL SYSTEM ISPROHIBITED:State laws prohibit, or Canadian provincial laws may prohibit thefollowing acts or the causing thereof: ( ) The removal or renderinginoperative by any person, other than for purposes of maintenance,repair or replacement, of any device or element of design incorporatedinto any new vehicle for the purpose of noise control prior to its sale ordelivery to the ultimate purchaser or while it is in use; or ( ) the use ofthe vehicle after such device or element of design has been removed orrendered inoperative by any person.

AMONG THOSE ACTS PRESUMED TO CONSTITUTETAMPERING ARE THE FOLLOWING ACTS:

Removal of, or puncturing the muffler, baffles, header pipes or anyother component which conducts exhaust gases.Removal of, or puncturing of any part of the intake system.Lack of proper maintenance.Replacing any moving parts of the vehicle, or parts of the exhaust orintake system, with parts other than those specified by themanufacturer.

1.

2.3.4.

1

2

０６／０９／２７　１１：１９：４１　３１ＨＰ４６００　０２１１　

203

Oxygenated Fuels


Some conventional gasolines are being blended with alcohol or an ethercompound. These gasolines are collectively referred to as oxygenatedfuels. To meet clean air standards, some areas of the United States andCanada use oxygenated fuels to help reduce emissions.If you use an oxygenated fuel, be sure it is unleaded and meets theminimum octane rating requirement.Before using an oxygenated fuel, try to confirm the fuel’s contents.Some states/provinces require this information to be posted on the pump.

The following are the EPA-approved percentages of oxygenates:

ETHANOL (ethyl or grain alcohol) 10% by volumeYou may use gasoline containing up to 10% ethanol by volume.Gasoline containing ethanol may be marketed under the name‘‘Gasohol’’.

MTBE (Methyl Tertiary Butyl Ether) 15% by VolumeYou may use gasoline containing up to 15% MTBE by volume.

METHANOL (methyl or wood alcohol) 5% by VolumeYou may use gasoline containing methanol containing up to 5%methanol by volume as long as it also contains cosolvents and corrosioninhibitors to protect the fuel system. Gasoline containing more than 5%methanol by volume may cause starting and/or performance problems. Itmay also damage metal, rubber, and plastic parts of your fuel system.

０６／０９／２７　１１：１９：４９　３１ＨＰ４６００　０２１２　

204

Oxygenated Fuels


Oxygenated f uels can damage paint and plastic. Damage caused byspilled f uel is not covered by warranty.

If you notice any undesirable operating symptoms, try another servicestation or switch to another brand of gasoline.

Fuel system damage or performance problems resulting from the use ofan oxygenated fuel containing more than the percentages of oxygenatesmentioned above are not covered under warranty.

Oxygenated fuels can damage paint and plastic. Be careful not to spillfuel when filling the fuel tank. Wipe up any spills immediately.

０６／０９／２７　１１：１９：５５　３１ＨＰ４６００　０２１３　

205

Consumer Information


This section contains information on your warranty and how to get anofficial Honda service manual.

..........................................................................Authorized Manuals ............................................................................Warranty Coverage .

...............................................................................Warranty Service ..............................................................................Contacting Honda ............................................................................Your Honda Dealer .

................................................The Honda Rider’s Club (USA only) .

206209210211212213

０６／０９／２７　１１：２０：０３　３１ＨＰ４６００　０２１４　

＊

＊

$48.00

$48.00$16.00

61HP400

61CM00231HP4600

Common Service Manual

Prices are subject to change without notice and without incurring obligation.

2007 TRX420TM/TE/FM/FE ServiceManual

2007 TRX420TM/FM Owner’sManual

Publication Item No. Description Price Each

206

Authorized Manuals


The Service Manual used by your authorized Honda dealer isavailable from Helm, Inc. (USA only, Canada: See your Honda dealerto order authorized manuals.)

Also available but not necessary to service your model is the HondaCommon Service Manual which explains theory of operation andbasic service information for various systems common to all Hondamotorcycles, motor scooters and ATVs.

These Honda manuals are written for the professional technician, butmost mechanically-capable owners should find them easy to use ifthey have the proper tools and observe proper safety standards.Special Honda tools are necessary for some procedures.

０６／０９／２７　１１：２０：１３　３１ＨＰ４６００　０２１５　

－－

＊

＊

Prices are subject to change without notice and

without incurring obligation.

Orders are mailed within 10 days. Please allow

adequate time for delivery.

PublicationItem No.

TotalPrice

Purchaser’s Sales Tax

Mich. Add 6 %

Calif. Add 8.25 %

Sub Total

Qty. Price Each

Handling Charge

Grand Total

$5.00

Item Description

207

Order On-Line: www.helminc.com

Order Toll Free: 1-888-CYCLE93

OR


(NOTE: For Credit Card Orders Only)

(1-888-292-5393)

Monday Friday 8:00 AM 6:00 PM EST

By completing this form you can order the materials desired. You canpay by check or money order, or charge to your credit card. Mail toHelm, Inc. at the address shown on the back of this order form (USAonly).

Canada: See your Honda dealer to order authorized manuals.

０６／０９／２７　１１：２０：２４　３１ＨＰ４６００　０２１６　

－

P. O. BOX 07280, DETROIT, MICHIGAN 48207

SHIP

TO

PAYMENT

NOTE: Dealers and Companies please provide dealer or company name, and also the name of the person to

whose attention the shipment should be sent.

Customer Name

Attention

Street Address Apartment Number

City State Zip Code

Daytime Telephone Number

Check or money order enclosed payable to Helm Inc. U. S. funds only. Do not send cash.

Check here if your billing address is different from the shipping address shown above.

VISA DiscoverMasterCard

Account Number Expiration: Mo. Yr.

Customer Signature Date

These Publications cannot be returned for credit without receiving advance authorization within 14 days of delivery. On

returns, a restocking fee may be applied against the original order.

( )

HELM

208 Consumer Information

０６／０９／２７　１１：２０：４０　３１ＨＰ４６００　０２１７　

209

Warranty Coverage


Your new Honda is covered by these warranties:

There are responsibilities, restrictions, and exclusions which apply tothese warranties. Please read the Warranties Booklet given to you byyour Honda dealer at the time of purchase. Be sure to keep your Hondaowner’s card with your Warranties Booklet (USA only).

It is important to realize that your warranty applies to defects in materialor workmanship of your Honda. Your warranty coverage does not applyto normal wear or deterioration associated with using the ATV.

Your warranty coverage will not be voided if you choose to performyour own maintenance. However, you should have the proper tools andservice information and be mechanically qualified. Failures that occurdue directly to improper maintenance are not covered.

Almost all of your warranty coverage can be extended through theHonda Protection Plan (USA only). For more information, see yourHonda dealer.

TRX Limited WarrantyExhaust Emission Warranty (USA Only)

０６／０９／２７　１１：２０：４９　３１ＨＰ４６００　０２１８　

210

Warranty Service


Please remember that recommended maintenance interval servicing isnot included in your warranty coverage. Additionally, your warrantydoes not apply to the normal wear of items (such as brakes, tires, etc.).

If you believe you have a problem with your ATV, call the servicedepartment of your Honda dealer. Make an appointment for aninspection and diagnosis. Remember, as the owner of the ATV, you willbe asked to authorize that inspection. Your dealer will give you theresults of the inspection. If the problem is covered under warranty, yourdealer will perform the warranty repairs for you.

If you have questions about warranty coverage or the nature of therepair, it is best to talk to the service manager of your Honda dealer.

Sometimes, in spite of the best intentions of all concerned, amisunderstanding may occur. If you aren’t satisfied with your dealer’shandling of the situation, we suggest you discuss your problem with theappropriate member of the dealership’s management team. If theproblem has already been reviewed with the Service Manager, PartsManager, Sales Manager, etc., contact the Owner of the dealership ortheir designated representative.

０６／０９／２７　１１：２０：５５　３１ＨＰ４６００　０２１９　

211

Contacting Honda


Your owner’s manual was written to cover most of the questions youmight ask about your Honda. Any questions not answered in the owner’smanual can be answered by your Honda dealer. If your dealer doesn’thave the answer right away, they will get it for you.

If you have a difference of opinion with your dealer, please rememberthat each dealership is independently owned and operated. That’s whyit’s important to work to resolve any differences at the dealership level.

If you wish to comment on your experiences with your Honda or withyour dealer, please send your comments to the following address (USAonly):Motorcycle Division, American Honda Motor Co., Inc., P.O. Box 2200,Torrance, CA 90509-2200, mailstop: 100-4C-7B, telephone: (866) 784-1870.

Canada: Refer to the Warranties Booklet that was supplied with yourvehicle.

Please include the following information in your letter:name, address, and telephone numberproduct model, year, and VINdate of purchasedealer name and address

We will likely ask your Honda dealer to respond, or possiblyacknowledge your comments directly.

０６／０９／２７　１１：２１：０３　３１ＨＰ４６００　０２２０　

212

Your Honda Dealer


Once you purchase your new Honda, get familiar with the organizationof your Honda dealer so you can utilize the full range of servicesavailable.

The service department is there to perform regular maintenance andunexpected repairs. It has the latest available service information fromHonda. The service department will also handle warranty inspectionsand repairs.

The parts department offers Genuine Honda parts, Pro Honda products,Hondaline accessories (USA only), and Honda accessories and products(Canada only). The same quality that went into your Honda can befound in Genuine Honda replacement parts. You’ll also find comparablequality in the accessories and products available from the partsdepartment.

The sales department offers the Honda Protection Plan to extend almostall of your warranty coverage (USA only).Your Honda dealer can inform you about competition and other ridingevents in your area. You’ll also find that your dealer is a source ofinformation about American Honda’s Rider Education Centers and theHonda Rider’s Club of America (USA only).

We’re sure you’ll be as pleased with the service your Honda dealercontinues to provide after the sale as you are with the quality anddependability of your Honda.

０６／０９／２７　１１：２１：１０　３１ＨＰ４６００　０２２１　

213

The Honda Rider’s Club (USA only)


For street-legal motorcycles andscooters only.

Honda Red Rider

If you purchased an of f -road motorcycle, ATV or PWC, your benef itsdo not include roadside assistance or trip interruption protection.

One of the best ways to get the most enjoyment from owning and ridingyour Honda is through the Honda Rider’s Club of America. Yourpurchase of a new motorcycle, scooter, ATV or PWC from aparticipating U.S. Honda dealer entitles you to a complimentary one-year membership in the Club. There are hundreds of HRCA Chapter-sponsoring dealers across the USA with events and activities almostevery weekend. Membership benefits include:

24-hour, toll-free roadside assistance for your new Honda (includesroadside assistance for your transport vehicle [up to one ton] as longas your Honda is aboard or in tow).

An exclusive HRCA website complete with access to the officialHonda Common Service Manual, contests, insider information andmore.Reimbursement (up to $75) for successful completion of aMotorcycle Safety Foundation training course. Separate,complimentary training from the Specialty Vehicle Institute ofAmerica for purchasers of new ATVs.One full year of magazine (six issues).Discounts from HRCA partners for experienced rider courses.Discounted vehicle insurance from the HRCA’s insurance partner.Racing contingency programs and assistance at selected dual-sport,off-road and motocross events for off-road motorcycles and selectedATVs.

Contact your Honda dealer for more information or call: 1-800-847-4722 or log on to www.hrca.honda.com.

０６／０９／２７　１１：２１：２０　３１ＨＰ４６００　０２２２　

214

Table of Contents

Table of Contents

......................................................................................ATV SAFETY . 1

.......................................................INSTRUMENTS & CONTROLS . 9

The following presents the contents of each section of your owner’smanual.

...............................................................Important Safety Information ..........................................................................................Safety Labels .

..........................................................Operation Component Locations ................................................................................Indicators & Gauge .

........................................................................................Fuel Gauge ...............................................................................Controls & Features .

.........................................................................................Fuel Valve ...................................................................................Ignition Switch .

...................................2WD/4WD Select Lever (TRX420FM only) ........................................................................................Start Button .

...........................................................................Engine Stop Switch ................................................................................Headlight Switch .

.................................................................Headlight Dimmer Switch ....................................................................................Throttle Lever .

......................................................................Reverse Selector Knob ..............................................................................Front Brake Lever .

..............................................................................Rear Brake Lever ................................................................................Rear Brake Pedal .

....................................................................................Parking Brake ...............................................................................Flag Pole Bracket .

......................................................................................Trailer Hitch .

25

10131617171819202021212223242424252627

０６／０９／２７　１１：２１：４０　３１ＨＰ４６００　０２２３　

215

Table of Contents

Table of Contents

.............................................................................BEFORE RIDING . 29.......................................................................Are You Ready to Ride? .

.............................................................................Protective Apparel ....................................................................................Rider Training .

.......................................................................Age Recommendation ....................................................................................No Passengers .

.........................................................................No Alcohol or Drugs .................................................................Is Your ATV Ready to Ride? .

............................................................................Pre-ride Inspection ......................................................................Load Limits & Guidelines .

.............................................................................................Loading ........................................................................................Load Limits .

...........................................................................Loading Guidelines .

........................................................................................Accessories .................................................................Accessories & Modifications .

....................................................................................Modifications .

303032333334353539394041424243

０６／０９／２７　１１：２１：５５　３１ＨＰ４６００　０２２４　

216

Table of Contents

Table of Contents

....................................................BASIC OPERATION & RIDING . 45........................................................................Safe Riding Precautions .

...........................................................................Off-Road Use Only ......................................................Keep Hands and Feet on Controls .

....................................................................................Control Speed .........................................Use Care on Unfamiliar or Rough Terrain .

......................................................................Do Not Perform Stunts .............................................................Starting & Stopping the Engine .

........................................................................................Preparation ..............................................................................Starting Procedure .

.................................................................................Flooded Engine .....................................Bank Angle Sensor Ignition Cut-off System .

...................................................................................Stalled Engine .....................................................................How to Stop the Engine .

.......................................................................................Shifting Gears ...................................................................................Riding in Reverse .

..................................................................................................Braking ..................................................................................Riding Your ATV .

....................................................................................Making Turns ............................................................................Skidding or Sliding .

.................................................................................Riding Up Hills .............................................................................Riding Down Hills .

.............................................Crossing or Turning on Hills or Slopes .......................................................................Riding Over Obstacles .......................................................................Riding Through Water .

..................................................................................................Parking .

47474849505152525354545556575961636365667071737475

０６／０９／２７　１１：２２：１６　３１ＨＰ４６００　０２２５　

217Table of Contents

Table of Contents

...........................................................SERVICING YOUR HONDA . 77Bef ore You Service Your Honda

Service Preparations

Service Procedures

(cont’d)

...........................................................The Importance of Maintenance ................................................................................Maintenance Safety .

............................................................Important Safety Precautions ...........................................................................Maintenance Schedule .

..............................................................................Maintenance Record .

......................................................Maintenance Component Locations ..................................................................................................Tool Kit .

.......................................................................Owner’s Manual Storage .........................................................................................Seat Removal .........................................................................................Clip Removal .

Fluids & Filters.......................................................................................................Fuel .

................................................................................Engine Oil & Filter .....................................................................................Gear Case Oil .

...................................................Differential Oil ( only) ...............................................................................................Coolant .

........................................................................................Air Cleaner .

Engine..............................................................................................Throttle .

...................................................................................Clutch System .........................................................................Reverse Lock System .

.........................................................................................Spark Plug .................................................................................................Valves .

...................................................................................Spark Arrester .

7980818286

8790919293

9497

106108110116

122124125126129130

TRX420FM

０６／０９／２７　１１：２２：３９　３１ＨＰ４６００　０２２６　

218

Table of Contents

Table of Contents

...................................................................................................TIPS . 161

...................................TAKING CARE OF THE UNEXPECTED . 171

Chassis................................................................................................Brakes .

..................................................................................................Tires ................................................................Engine Guard & Skid Plate .

.................................................Driveshaft Boots ( only) ..........................................Propeller Shaft Boots & Yoke Joint Boot .

Electrical...............................................................................................Battery .

...............................................................................Appearance Care .

..........................................................................Preparing for a Ride ...................................................What to Take to the Riding Area .

.............................................................What to Take on the Trail ..................................................................Transporting Your Honda .

.................................................................Preparation for Storage ...........................................................................Storing Your Honda .

..................................................................Removal from Storage .....................................................................You & the Environment .

............................................................................General Guidelines ..................................................If Your Engine Quits or Won’t Start .

.....................................................................If You Have a Flat Tire .............................If the High Coolant Temperature Indicator Lights .

.................................................................................If a Fuse Blows .......................................................................................If You Crash .

.........................................................If the Battery Is Low (or Dead) ..........................................................................If a Component Fails .

......................................................................If You Lose Your Key .

131142149150151

152

157

162162163164166167169170

172174177180182186187188189

TRX420FM

０６／０９／２７　１１：２３：０２　３１ＨＰ４６００　０２２７　

219

Table of Contents

Table of Contents

.....................................................TECHNICAL INFORMATION . 191

......................................................CONSUMER INFORMATION . 205

.................................................................TABLE OF CONTENTS . 214

...............................................................................................INDEX . 220

QUICK REFERENCE

........................................................................Vehicle Identification .....................................................................................Specifications .

..........................................................................Break-in Guidelines ..................................................................Emission Control Systems .

..............................................................................Oxygenated Fuels .

..........................................................................Authorized Manuals ............................................................................Warranty Coverage .

...............................................................................Warranty Service ..............................................................................Contacting Honda ............................................................................Your Honda Dealer .

................................................The Honda Rider’s Club (USA only) .

192194198199203

206209210211212213

０６／０９／２７　１１：２３：１６　３１ＨＰ４６００　０２２８　

220

Index

Index

A

B

............................................................................................accessories . 42............................................................................age recommendation . 33

air cleaner,.......................................................................................dust cover . 120

................................................................................................filter . 116..........................................................................housing drain tube . 121

air pressure,................................................................................................gauge . 91

..................................................................................................tire . 143..............................................................American Honda, contacting . 211

................................................................................apparel, protective . 30..................................................................................appearance care . 157

.............................................................................authorized manuals . 206

.................................................................................................battery . 152............................................bank angle sensor ignition cut-off system . 54

..............................................................brakelight switch adjustment . 140brakes,

..............................................................................................cables . 138........................................................................draining water from . 141

................................................................................................fluid . 131...............................................................................front brake lever . 24

.........................................................................................pad wear . 134.............................................................................................parking . 25

.................................................................................rear brake lever . 24................................................................rear brake lever freeplay . 137

................................................................................rear brake pedal . 24................................................................rear brake pedal freeplay . 135

０６／０９／２７　１１：２３：２２　３１ＨＰ４６００　０２２９　

221

Index

Index

C

D

........................................................................................shoe wear . 139.................................................................................................braking . 61

.............................................................................break-in guidelines . 198

........................................................................................capacity, fuel . 95.................................................................................care, appearance . 157

cargo,...................................................loading and operational guidelines . 41

......................................................................................weight limit . 40...................................................................cleaning, appearance care . 157

........................................................................................climbing hills . 66........................................................................................................clip . 93

......................................................................................clutch system . 124...........................................................................................color label . 193

compartment,................................................................................owner’s manual . 91

..............................................................................................tool kit . 90..................................................................................component fails . 189

........................................................................consumer information . 205...............................................................................controls & features . 17

........................................................................................crash, if you . 186....................................................crossing or turning on hills or slopes . 71

.................................................................................customer service . 211

.....................................................differential oil (TRX420FM only) . 108.....................................................................dimmer switch, headlight . 21

...............................................................................................dipstick . 101..................................................driveshaft boots (TRX420FM only) . 150

０６／０９／２７　１１：２３：２８　３１ＨＰ４６００　０２３０　

222

Index

Index

E

F

....................................................................emission control systems . 199engine,

.............................................................................................flooded . 54..............................................................................................guard . 149

...........................................................................................number . 192.....................................................................................................oil . 97

.............................................................................................pinging . 94..............................................................................................starting . 52

........................................................................................stop switch . 20............................................................................................stopping . 56

......................................................................................won’t start . 174.......................................................................................environment . 170

exhaust system,............................................................................................cleaning . 36

...........................................................................................purging . 130

...............................................................................final gear case oil . 106...................................................................................flag pole bracket . 26

................................................................................................flat tire . 177......................................................................................flooded engine . 54

０６／０９／２７　１１：２３：３４　３１ＨＰ４６００　０２３１　

223

Index

Index

G

H

...................................................................................gap, spark plug . 127...............................................................................................gasohol . 203................................................................................................gasoline . 94

........................................................................................gear case oil . 106.........................................................................................gear shifting . 57

(cont’d)

fuel,.............................................................................................fill cap . 95

...............................................................................................gauge . 16.....................................................................................oxygenated . 203

...............................................................................recommendation . 94...........................................................................................refueling . 95

...........................................................................reserve fuel supply . 95....................................................................................tank capacity . 95

.................................................................................................valve . 17...................................................................................................fuses . 182

......................................................................headlight dimmer switch . 21...................................................................................headlight switch . 21

hills,............................................................crossing or turning on slopes . 71

..............................................................................riding down hills . 70...................................................................................riding up hills . 66

...............................................................................stopping on hills . 68

０６／０９／２７　１１：２３：４０　３１ＨＰ４６００　０２３２　

224

Index

Index

I

K

Honda,.......................................................................................contacting . 211

...................................................................................Rider’s Club . 213..............................................................................................dealer . 212

........................................................................Honda service manual . 206

key,..................................................................................................lost . 187

...........................................................................................number . 187.................................................................................................kit, tool . 90

.........................................................................identification, vehicle . 192......................................................................................ignition switch . 18

indicators,.....................................high coolant temperature indicator . 13, 15, 180

.........................................................................neutral indicator . 13, 15.......................................................................PGM-FI indicator . 13, 15

.........................................................................reverse indicator . 13, 15......................................4WD indicator (TRX420FM only) . 13, 15, 19

...............................................................................inspection, pre-ride . 35

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225

Index

Index

L

M

maintenance,.........................................................................component locations . 87

........................................................................................importance . 79.........................................................................................precations . 81

...............................................................................................record . 86................................................................................................safety . 80

............................................................................................schedule . 82...................................................................................manual, service . 206

.........................................................................maximum weight limit . 40........................................................................................modifications . 43

...........................................................................................labels, safety . 5...........................................................................................lamp check . 14

........................................lever, 2WD/4WD select (TRX420FM only) . 19.........................................................................................limit, weight . 40

.............................................................................................load limits . 40................................................................................loading guidelines . 41

lubrication,.................................................differential oil (TRX420FM only) . 108

..........................................................................................engine oil . 97....................................................................................gear case oil . 106

０６／０９／２７　１１：２３：５１　３１ＨＰ４６００　０２３４　

226

Index

Index

N

O

.............................................................................neutral indicator . 13, 15............................................................noise emission control system . 202

....................................................................................numbers, serial .192

...........................................................................obstacles, riding over . 73oil,

......................................................differential (TRX420FM only) . 108...............................................................................................engine . 97

.........................................................................................gear case . 106.............................................................operation component locations . 10

........................................................................owner’s manual storage . 91................................................................................oxygenated fuels . 203

０６／０９／２７　１１：２３：５７　３１ＨＰ４６００　０２３５　

227

Index

Index

P

R

(cont’d)

.................................................................................................parking . 75...........................................................................passenger no carrying . 33.........................................................................pavement, no riding on . 47

.....................................................................................pinging, engine . 94..........................................................................................plug, spark . 126

................................................................................pre-ride inspection . 35.........................................................................problems, unexpected . 171

..............................................propeller shaft boots & yoke joint boot . 151.................................................................................protective apparel . 30

........................................................................rear final gear case oil . 106........................................................................................removal, seat . 92

reverse,......................................................................................assist cable . 125......................................................................................assist lever . 125

.............................................................................gear, shifting into . 59.....................................................................................indicator . 13, 15

............................................................................................riding in . 59....................................................................................selector knob . 23

.........................................................................................rider training . 32...........................................................................Rider’s Club, Honda . 213

０６／０９／２７　１１：２４：０３　３１ＨＰ４６００　０２３６　

228

Index

Index

S

riding,................................................................................basic operations . 45

.............................................................................................clothing . 30.......................................................................................precautions . 47

..................................................................................preparing for . 162...................................................................................over obstacles . 73

..................................................................................................safety . 2.............................................................................safety precautions . 47

...................................................................................through water . 74

safety,.......................................................................important precautions . 81

..................................................................................................labels . 5.............................................................................riding precautions . 47

..........................................................................schedule, maintenance . 82.........................................................................................seat removal . 92

....................................................................................serial numbers . 192service,

.........................................................................................customer . 211..........................................................................................manuals . 206.........................................................................................warranty . 210

........................................................................................shifting gears . 57............................................................................................skid plate . 149

................................................................................skidding or sliding . 65......................................................................................spark arrester . 130

..........................................................................................spark knock . 94...........................................................................................spark plug . 126

......................................................................................specifications . 194

０６／０９／２７　１１：２４：０８　３１ＨＰ４６００　０２３７　

229

Index

Index

....................................................................................stalling on a hill . 68............................................................................................start button . 20

starting,...............................................................................................engine . 52

...............................................................................troubleshooting . 174...............................................................................stop switch, engine . 20

....................................................................................stopping engine . 56storage,

...............................................................................................ATV . 166................................................................................owner’s manual . 91

switch,.......................................................................................engine stop . 20

...........................................................................................headlight . 21.............................................................................headlight dimmer . 21

.............................................................................................ignition . 18

０６／０９／２７　１１：２４：１３　３１ＨＰ４６００　０２３８　

230

Index

Index

T

throttle,...............................................................................................cable . 123

..................................................................................lever . 22, 122, 123tires,

.....................................................................................air pressure . 143..................................................................................................flat . 177

.........................................................................................replacing . 148

.........................................................................................repairing . 147......................................................................tread conditions . 145, 146

..................................................................................................tool kit . 90...........................................................................................trailer hitch . 27

trailer towing,......................................................................operational guidelines . 41

.....................................................................................weight limits . 40........................................................................................training, rider . 32

.......................................................................transporting your ATV . 164............................................................................trouble, unexpected . 171

.....................................................................troubleshooting, starting . 174turning,

..................................................................................on level ground .63...............................................................................on hills or slopes . 71

０６／０９／２７　１１：２４：１７　３１ＨＰ４６００　０２３９　

231

Index

Index

W

V

........................................................................................warning labels . 5warranty,

.........................................................................................coverage . 209

.........................................................................................extended . 209............................................................................................service . 210

.............................................................................washing your ATV . 158water,

...................................................................................riding through . 74......................................................................draining from brakes . 141

..........................................................................................weight limit . 40....................................................................................wheel removal . 178

.............................................................................................valve, fuel . 17...................................................................................valve clearance . 129

.......................................................vehicle indentification no. (VIN) . 192

０６／０９／２７　１１：２４：２２　３１ＨＰ４６００　０２４０　

232 Memo

０６／０９／２７　１１：２４：２５　３１ＨＰ４６００　０２４１　

How To Avoid Costly Repairs

Quick Reference

Quick Reference

The following is a brief, but important collection of information youneed to know about your Honda. You’ll also find space to recordimportant notes.

The engine of your Honda can be the most expensive component torepair. Proper maintenance, especially the use of the recommendedfluids and filters, prevents premature wear and damage.

Frequent causes of costly repairs are:Engine oil: insufficient quantity, improper oil.Air cleaner: dirty, leaking because of improper installation (poor seal).

Record important information on the following page:

０６／０９／２７　１１：２４：３３　３１ＨＰ４６００　０２４２　

Quick Reference

Quick Reference

Engine No.VINIgnition Key No.Color LabelOwner’s Name

AddressCity/StatePhone

Dealer’s NameAddressCity/StatePhoneService Mgr.

０６／０９／２７　１１：２４：３７　３１ＨＰ４６００　０２４３　

485 lbs (220 kg)

0.74 US gal (2.8 )

3.62 US gal (13.7 )

Quick Reference

Quick Reference

ScheduledMaintenancePre-ride Inspection

Initial: 100 miles (150 km)Regular: every 600 miles (1,000 km)Check the following items each timebefore you ride (page ): engine oil,radiator coolant, fuel, tires, driveshaftboots (TRX420FM only), propeller shaftboots & yoke joint boot, nuts & bolts,underbody & exhaust system, air cleanerhousing drain tube, leaks, loose parts,cables, lights, throttle, brakes, reverseassist lever, switches, steering.

rider, all cargo and accessoriesMaximum WeightCapacity

API Service Classification SG or higherexcept oils labeled as energy conservingon the circular API service label,SAE 10W-30, JASO T 903 standard MA,Pro Honda GN4 4-stroke oil or equivalent

Engine Oil

Fuel/Capacity unleaded gasoline, pump octane number86 or higher

reserve:

35

０６／０９／２７　１１：２４：４８　３１ＨＰ４６００　０２４４　

× ★★

× ★★

×

AT24 8-12MAXXIS M977AT24 10-11MAXXIS M978


30 A15 A10 A 3

main:other:

or

Front:

Rear:

Front:

Rear:

standard:

3.6 psi (25 kPa , 0.25 kgf/cm )

3.6 psi (25 kPa , 0.25 kgf/cm )

Quick Reference

Quick Reference

Tires

Tire Pressure (cold)

Spark Plugs

Fuses

Coolant ethylene glycol antifreeze (silicate-free)for aluminum engines in 50/50 solutionwith Pro Honda HP Coolant or anequivalent distilled water

０６／０９／２７　１１：２４：５９　３１ＨＰ４６００　０２４５　

2007 honda trx420tm/fm fourtrax rancher …owners.honda.com/.../2007/2007_trx420tm_fm.pdf · 2007...

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