the engine exhaust from this - american honda …...the engine exhaust from this product contains...

The engine exhaust from thisproduct contains chemicalsknown to the State of California tocause cancer, birth defects, orother reproductive harm.

The information and specifications included in this publication were in effect at thetime of approval for printing. Honda Motor Co., Ltd. reserves the right, however, todiscontinue or change specifications or design at any time without notice and withoutincurring any obligation whatever. No part of this publication may be reproducedwithout written permission.

Keep this owner’s manual handy, so you can refer to it at any time. This owner’smanual is considered a permanent part of the outboard motor and should remain withthe outboard motor if resold.

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1

INTRODUCTION

Congratulations on your selection ofa Honda outboard motor. We arecertain you will be pleased with yourpurchase of one of the finestoutboard motors on the market.

We want to help you get the bestresults from your new outboardmotor and to operate it safely. Thismanual contains the information onhow to do that; please read itcarefully.

As you read this manual you willfind information preceded by a

symbol. That informationis intended to help you avoid damageto your outboard motor, otherproperty, or the environment.

We suggest you read the warrantypolicy to fully understand itscoverage and your responsibilities ofownership. The warranty policy is aseparate document that should havebeen given to you by your dealer.

When your outboard motor needsscheduled maintenance, keep in mindthat your Honda marine dealer isspecially trained in servicing Hondaoutboard motors. Your Honda marinedealer is dedicated to yoursatisfaction and will be pleased toanswer your questions and concerns.

2002 Honda Motor Co., Ltd. AllRights Reserved

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2

A FEW WORDS ABOUTSAFETY

INTRODUCTION

Safety Messages

Safety Headings

Safety Labels

Safety Section

Instructions

IMPORTANT SAFETY INFORMATION.

OUTBOARD MOTOR SAFETY.

Your safety and the safety of othersare very important. And using thisoutboard motor safely is an importantresponsibility.

To help you make informeddecisions about safety, we haveprovided operating procedures andother information on labels and inthis manual. This information alertsyou to potential hazards that couldhurt you or others.

Of course, it is not practical orpossible to warn you about all thehazards associated with operating ormaintaining an outboard motor. Youmust use your own good judgment.

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

This entire book is filled with important safety information please read itcarefully.

preceded by a safety alert symbol and one ofthree signal words, DANGER, WARNING, or CAUTION.

These signal words mean:

such as

on the outboard motor.

such as

how to use this outboard motor correctly and safely.

You WILL be KILLED or SERIOUSLYHURT if you don’t follow instructions.

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

You CAN be HURT if you don’t followinstructions.

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3

CONTENTS

...................................OUTBOARD MOTOR SAFETY . 7................IMPORTANT SAFETY INFORMATION . 7

................................SAFETY LABEL LOCATIONS . 9

..................................CONTROLS AND FEATURES . 10CONTROL AND FEATURE

................................IDENTIFICATION CODES . 10....COMPONENT AND CONTROL LOCATIONS . 11

..............................................................CONTROLS . 14H Type (tiller handle)

....................Engine Stop Switch and Switch Clip . 14

....................Choke Knob (H type manual choke) . 14..........................................................Throttle Grip . 15

............................................Throttle Friction Dial . 15.....................................................Gearshift Lever . 15

................................................Recoil Starter Grip . 16Electric Starter Button (models equipped

...........................................with electric starter) . 16R Type (remote control)

......................................................Ignition Switch . 16.............Switch Clip and Emergency Stop Switch . 17

.......................................................Fast Idle Lever . 18..........................Gearshift/Throttle Control Lever . 18

Common Controls..............................................Engine Cover Latch . 20

.............................Transom Angle Adjusting Rod . 20.........................................Steering Friction Lever . 21

...............................................................Tilt Lever . 21.......................................................INSTRUMENTS . 21

............................................................Fuel Gauge . 21...........................................................INDICATORS . 22

...............Oil Pressure Indicator (R type) (H type) . 22.............................Overheating Indicator (R type) . 22

.....................................Cooling System Indicator . 23................................................OTHER FEATURES . 23

.....................................................Overrev Limiter . 23................Automatic Choke (equipped type only) . 23

...................................................................Anodes . 23................................................Portable Fuel Tank . 24

.............................................Fuel Cap Vent Knob . 24.................................................Fuel Priming Bulb . 24

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CONTENTS

..........................................................INSTALLATION . 25.....................................POWER REQUIREMENTS . 25

...................BOAT TRANSOM REQUIREMENTS . 25..................................INSTALLATION POSITION . 26

.......................................................ATTACHMENT . 26.....................TRANSOM ANGLE ADJUSTMENT . 27

...................................BATTERY CONNECTIONS . 27

................................................BEFORE OPERATION . 30.....ARE YOU READY TO GET UNDER WAY . 30

IS YOUR OUTBOARD MOTOR................................................READY TO GO . 30

................................................................OPERATION . 32....................SAFE OPERATING PRECAUTIONS . 32

.......................................BREAK-IN PROCEDURE . 32.....................TRANSOM ANGLE ADJUSTMENT . 33

.......................................PORTABLE FUEL TANK . 34................................FUEL HOSE CONNECTIONS . 34

.......................................................FUEL PRIMING . 35......................................STARTING THE ENGINE . 35

............................................H Type (tiller handle) . 35........................................R Type (remote control) . 38

.....................................EMERGENCY STARTING . 40.......................................STOPPING THE ENGINE . 43

................................Emergency Engine Stopping . 43.......................................Normal Engine Stopping . 43

GEARSHIFTING AND..............................THROTTLE OPERATION . 45

............................................H Type (tiller handle) . 45........................................R Type (remote control) . 46

...............................................................STEERING . 47............................................H Type (tiller handle) . 47

........................................R Type (remote control) . 47................................................................CRUISING . 48

........................SHALLOW WATER OPERATION . 49...............MOORING, BEACHING, LAUNCHING . 50

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CONTENTS

..............SERVICING YOUR OUTBOARD MOTOR . 51...........THE IMPORTANCE OF MAINTENANCE . 51

.....................................MAINTENANCE SAFETY . 52TOOL KIT AND EMERGENCY STARTER

.....................................................................ROPE . 53...............................MAINTENANCE SCHEDULE . 54

ENGINE COVER REMOVAL AND..................................................INSTALLATION . 56

............................................Engine Oil Level Check . 56....................................................Engine Oil Change . 57

.......................................................Oil Filter Change . 58..................................Engine Oil Recommendations . 59

.....................................................Lubrication Points . 60....................................................Spark Plug Service . 61

.............................................................REFUELING . 63...............................FUEL RECOMMENDATIONS . 64

.........Fuel Pump Filter Inspection and Replacement . 65....................Portable Fuel Tank and Filter Cleaning . 68

.................................Recoil Starter Rope Inspection . 69..................................................Anode Replacement . 69

..............................................Propeller Replacement . 70

....................................................................STORAGE . 71...................................STORAGE PREPARATION . 71

..........................................Cleaning and Flushing . 71........................................................................Fuel . 73

.............................................................Engine Oil . 75...................................STORAGE PRECAUTIONS . 75

...............................REMOVAL FROM STORAGE . 76

........................................................TRANSPORTING . 77WITH OUTBOARD MOTOR INSTALLED

.............................................................ON BOAT . 77WITH OUTBOARD MOTOR REMOVED

.......................................................FROM BOAT . 77

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6

CONTENTS

TAKING CARE OF UNEXPECTED..........................................................PROBLEMS . 78

BATTERY WILL NOT CHARGE AND.ELECTRIC STARTER WILL NOT OPERATE . 83

OIL PRESSURE INDICATOR LIGHT GOES OFF...................AND ENGINE SPEED IS LIMITED . 84

OVERHEATING INDICATOR LIGHT COMESON AND ENGINE SPEED IS LIMITED

.........................................(remote control type) . 85..........................................SUBMERGED MOTOR . 86

..TECHNICAL AND CONSUMER INFORMATION . 88...............................TECHNICAL INFORMATION . 88

........................................Serial Number locations . 88Carburetor Modification for High Altitude

...........................................................Operation . 89...................................................................Battery . 89

..................................................Oxygenated Fuels . 90.................Emission Control System Information . 91

..............................................................Star Label . 93........................................................Specifications . 95

...............................CONSUMER INFORMATION . 97

..................................................WIRING DIAGRAMS . 98

.........................................................................INDEX . 101

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7

IMPORTANT SAFETYINFORMATION

Operator Responsibility

OUTBOARD MOTOR SAFETY

Honda BF8D/BFP8D/BF9.9D andBFP9.9D outboard motors aredesigned for use with boats that havea suitable manufacturer’s powerrecommendation. Other uses canresult in injury to the operator ordamage to the outboard motor andother property.

Most accidents can be prevented ifyou follow all instructions in thismanual and on the outboard motor.The most common hazards arediscussed below, along with the bestway to protect yourself and others.

It is the operator’s responsibility toprovide the necessary safeguardsto protect people and property.Know how to stop the enginequickly in case of emergency.Understand the use of all controls.

Attach the emergency stop switchlanyard securely to the operator.

Stop the engine immediately ifanyone falls overboard, and do notrun the engine while the boat isnear anyone in the water.

Always stop the engine if youmust leave the controls for anyreason.

Always wear a PFD (PersonalFlotation Device) while on theboat.

Familiarize yourself with all lawsand regulations relating to boatingand the use of outboard motors.

Be sure that anyone who operatesthe outboard motor receives properinstruction.

Be sure the outboard motor isproperly mounted on the boat.

Do not remove the engine coverwhile the engine is running.

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Carbon Monoxide HazardRefuel With Care


Exhaust gas contains poisonouscarbon monoxide. Avoid inhalationof exhaust gas. Never run the enginein a closed garage or confined area.

Gasoline is extremely flammable,and gasoline vapor can explode.Refuel outdoors, in a well-ventilated area, with the enginestopped. Never smoke neargasoline, and keep other flamesand sparks away.

Remove any portable fuel tankfrom the boat for refueling. Keepthe portable fuel tank away fromthe battery or other potential sparksources.

Refuel carefully to avoid spillingfuel. Avoid overfilling the fueltank.

After refueling, tighten the fillercap securely. If any fuel is spilled,make sure the area is dry beforestarting the engine.

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SAFETY LABEL LOCATIONS


The labels shown here contain important safety information. Please read them carefully. These labels are consideredpermanent parts of your outboard motor. If a label comes off or becomes hard to read, contact an authorized HondaMarine servicing dealer for a replacement.

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10

CONTROL AND FEATURE IDENTIFICATION CODES

CONTROLS AND FEATURES

Battery Charging DC Receptacle

Power Thrust Propeller

Electric Starter

Remote Control

Tiller Handle

Shaft Length

Type

Model

SHA

S

H

LHA

L

H

SHSA

S

H

S

LHSA

L

H

S

SRA

S

R

S

LRA

L

R

S

LHA

L

H

P

XHA

X

H

P

LHSA

L

H

S

P

XHSA

X

H

S

P

LRA

L

R

S

P

XRA

X

R

S

P

Refer to this chart for an explanation of the Type Codes used in this manual to identify control and feature applications.

BF8D/BF9.9D/BFP8D/BFP9.9D areprovided with the following types accordingto the shaft length, control system, and startsystem.

BF8D / BF9.9D BFP8D / BFP9.9D

According to Shaft LengthS: Short ShaftL: Long ShaftX: Extra Long Shaft

H: Tiller Handle ControlR: Remote Control

According to Control SystemDestinationA=United StatesS=Electric Starter

L=Long ShaftS=Short ShaftH=Tiller HandleR=Remote Control

(Example)L H S A

X=Extra Long Shaft

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11

H Type (tiller handle)COMPONENT AND CONTROL LOCATIONS


OIL FILLER CAPSHIFT LEVER

OIL LEVELDIPSTICK

ENGINE OILDRAIN SCREW

TILT LEVER

ENGINE COVER

CLAMP SCREW

ADJUSTINGROD

COOLING WATERINTAKE PORT

PROPELLER

EXHAUST PORT

WATER HOSEJOINT HOLE(Inside enginecover)

FUEL HOSECONNECTOR

SWITCH CLIP

ENGINE STOPSWITCH

LANYARD

STARTER GRIP

TILLERHANDLE

STERNBRACKET

GEAR OILCHECK BOLT

GEAR OILDRAIN BOLT

ELECTRIC STARTERBUTTON(Electric starter type only)

CHOKE KNOB(Equipped type only)

THROTTLEFRICTIONDIAL

OIL PRESSUREINDICATOR LIGHT

THROTTLEGRIP

COOLINGSYSTEMINDICATOR

ANTIVENTILATIONPLATE

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12

R Type (remote control)


OIL FILLER CAP

OIL LEVELDIPSTICK

COOLINGSYSTEMINDICATOR

ENGINE OILDRAIN SCREW

ENGINE COVER

CLAMP SCREW

ADJUSTINGROD

COOLING WATERINTAKE PORT

PROPELLER

EXHAUST PORT SWITCH CLIP

STERNBRACKET

GEAR OILCHECK BOLT

GEAR OILDRAIN BOLT

STARTER GRIP WATER HOSEJOINT HOLE(Inside engine cover) NEUTRAL RELEASE

LEVER

EMERGENCYSTOP SWITCH

REMOTE CONTROLFRICTION ADJUSTER

LANYARD

FAST IDLELEVER

TILTLEVER

OIL PRESSUREINDICATOR LIGHT

ANTIVENTILATIONPLATE

IGNITIONSWITCH

GEARSHIFT/THROTTLECONTROL LEVER

OVERHEATINGINDICATOR LIGHT

BUZZER(inside box)

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FUEL GAUGE VENT KNOB

FUEL TANK

FUEL HOSE

FUEL CAP

PRIMING BULB

FUEL HOSE CONNECTOR(FEMALE)

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CONTROLS

H Type (tiller handle)


ENGINE STOPSWITCH

LANYARD

SWITCH CLIP

CHOKE KNOB

LANYARD

Engine Stop Switch and SwitchClip

Choke Knob (H type manualchoke)

The engine stop switch has controlsfor normal engine stopping andemergency engine stopping.

The switch clip must be inserted inthe engine stop switch in order forthe engine to start and run. Thelanyard should be attached to theoperator’s PFD (Personal FlotationDevice) or worn around the wrist asshown.

When used as described, the enginestop switch and lanyard system stopsthe engine if the operator falls awayfrom the controls.

A spare switch clip is supplied withthe tool kit.

The CLOSED position enriches thefuel mixture for starting a coldengine.

The choke knob opens and closes thechoke valves in the carburetors.

The OPEN position provides thecorrect fuel mixture for operationafter starting, and for restarting awarm engine.

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THROTTLE GRIP

RELEASE

FIXTHROTTLEFRICTION DIAL

THROTTLE GRIP

THROTTLE INDEXMARK R (reverse)

N (neutral)

F (forward)

Throttle Grip Throttle Friction Dial Gearshif t Lever

The gearshift lever is used to select F(forward), N (neutral), or R (reverse)gears.

The throttle grip controls enginespeed.

An index mark on the tiller armshows throttle position and is helpfulfor setting the throttle correctly whenstarting (p. ).

The throttle friction dial adjustsresistance to throttle grip rotation.

Turn the dial clockwise to increasefriction for holding a throttle settingwhile cruising.

Turn the dial counterclockwise todecrease friction for easy throttle griprotation.

If the gearshift lever is in the F(forward) or R (reverse) position, therecoil starter will not operate, and theelectric starter button (applicablemodels) will not operate the startermotor.

The engine can be started with thegearshift lever in the N (neutral)position only.36

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R Type (remote control)



IGNITIONSWITCH

STARTER GRIP

ELECTRIC STARTERBUTTON OOFFFF

CLIP

SSTTAARRTTOONN

Recoil Starter Grip Electric Starter Button (modelsequipped with electric starter)

Ignition Switch (side-mounttype)

Pull the starter grip to operate therecoil starter for starting the enginemanually.

The recoil starter will operate onlywhen the gearshift lever (p. ) is inthe N (neutral) position, and the clipis in the engine stop switch or theemergency stop switch.

Press the starter button to operate theelectric starter for starting the engine.

The electric starter button can beused to operate the starter motor onlywhen the gearshift lever (p. ) is inthe N (neutral) position, and the clipis in the engine stop switch.

For panel-mount or top-mountremote control information, refer tothe instructions provided with theremote control equipment.

The ignition switch controls theignition system and starter motor.

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LANYARD

SWITCH CLIP

SWITCH CLIP

LANYARD


SPARE SWITCH CLIP

Switch Clip and Emergency StopSwitch (side-mount type)

Turning the ignition switch key to theSTART position operates the startermotor. The key automatically returnsto the ON position when releasedfrom the START position.

The ignition switch can be used tooperate the starter motor only whenthe gearshift lever (p. ) is in the N(neutral) position, and the switch clipis in the emergency stop switch.

Turning the ignition switch to theOFF position stops the engine.

The switch clip must be inserted inthe emergency stop switch in orderfor the engine to start and run. Thelanyard must be attached to theoperator’s PFD (Personal FlotationDevice) or worn around the wrist asshown.

When used as described, theemergency stop switch and lanyardsystem stops the engine if theoperator falls away from the controls.

A spare switch clip is stored in a slotin the control housing.

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FAST IDLE LEVER


MAXIMUM FAST IDLE

NEUTRALRELEASE LEVER

LOWEST POSITION

Gearshif t/Throttle ControlLever (side-mount type)

Fast Idle Lever

(side-mount type)

The fast idle lever is provided withthe engine idle speed adjustingfunction.

The lever will not move unless thegearshift/throttle control lever is inthe N (neutral) position. Conversely,the gearshift/throttle control leverwill not move unless the fast idlelever is in the lowest position.

Leave the fast idle lever in the lowestposition to provide a rich fuelmixture for starting a cold engine.

Lift the fast idle lever to warm up acold engine after starting and to starta warm engine.

The control lever automatically locksitself in the N (neutral) position. Tomove the lever out of the N (neutral)position, you must squeeze theneutral release lever on the undersideof the lever handle.

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HIGH


N (neutral)

R (reverse)F (forward)

EENNGGIINNEESSPPEEEEDD

EENNGGIINNEESSPPEEEEDD

The gearshift/throttle control levercontrols engine speed and selects F(forward), N (neutral), or R (reverse)gears.

Moving the control lever 30° from N(neutral) selects the gear, and furthermovement increases engine speed.

A friction adjuster near the base ofthe control lever adjusts the operatingresistance of the control lever (p. ).

Less friction allows easier controllever movement. More friction helpsto hold a steady throttle setting whilecruising.

46

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Common Controls

Engine Cover Latch

Transom Angle Adjusting Rod


ENGINE COVERLATCH

ADJUSTING ROD

ADJUSTING ROD

(R type / XH type)

(SH / LH type)

The transom angle adjusting rodlimits the tilt angle of the outboardmotor when fully lowered.

The engine cover latch fastens theengine cover to the outboard motor.

Proper adjustment prevents theoutboard motor from being trimmedtoo low (p. ).48

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Fuel Gauge

INSTRUMENTS


FFRREEEE

STEERING FRICTION LEVER

TILT LEVER

LLOOCCKK

TTIILLTT

RRUUNN((LLOOCCKK))

FUEL GAUGE

Steering Friction Lever Tilt Lever

The steering friction lever adjustssteering resistance.

Less friction allows the outboardmotor to turn more easily. Morefriction helps to hold steady coursewhile cruising or to prevent theoutboard motor from swinging whiletrailering the boat.

The tilt lever enables the outboardmotor to be raised for shallow wateroperation, beaching, launching, ormooring.

To tilt, move the lever to the TILTposition, then raise the outboardmotor until the tilt mechanismengages at 30°, 45°, or 71° (p. ).

A fuel gauge is built into the cap ofthe portable fuel tank.

49

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INDICATORS

Oil Pressure Indicator(R type)

(H type)

Overheating Indicator(R type)


(GREEN)

OIL PRESSURE INDICATOR LIGHT

(RED)

When the green light is lit, oilpressure is OK.

If the engine overheats, the red lightwill come on, and the engineprotection system will limit enginespeed.

Remote controls are also equippedwith a buzzer that sounds when thered light comes on.

Engine overheating may be the resultof clogged water intakes.

If oil pressure becomes low, thegreen light will go off, and theengine protection system will limitengine speed.

Remote controls are also equippedwith a buzzer that sounds when thegreen light goes off.

Low oil pressure indicates that theengine oil level is low, or that there isa problem with the engine lubricationsystem.

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Cooling System Indicator OTHER FEATURES

Overrev Limiter

Automatic Choke (R type/HStype)

Anodes


COOLING SYSTEM INDICATORANODES

Water should flow from the coolingsystem indicator while the engine isrunning. This shows that water iscirculating through the coolingsystem.

If water stops flowing while theengine is running, that indicates acooling system problem, such asclogged water intakes, which willcause engine overheating.

The engine is equipped with anoverrev limiter to prevent thepossibility of mechanical damagefrom excessive engine speed.

The overrev limiter may be activatedduring operation, limiting enginespeed, if the outboard motor is tiltedexcessively, or when propellerventilation occurs during a sharp turn.

If the overrev limiter is activated,check the trim angle of the outboardmotor.

The engine is equipped with anautomatic choke so that the chokesystem operation is not needed whenstarting the engine.

There are two anodes on the gearcase.

The anodes are made of a sacrificialmaterial that helps to protect theoutboard motor from corrosion.

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Portable Fuel Tank Fuel Cap Vent Knob Fuel Priming Bulb


VENT KNOB

OOPPEENN

PRIMING BULB

INLET END(TANK)

CLOSEOUTLET END(MOTOR)

The portable fuel tank has a capacityof US gal ( ) and has a fuelgauge built into the cap.

The cap is provided with a vent knobto seal the portable fuel tank forcarrying it to and from the boat.Open the vent knob 2 or 3 turnsbefore starting the engine (p. ).

A priming bulb is built into the fuelhose that connects the fuel tank to theoutboard motor.

Before starting the engine, squeezethe priming bulb until it feels firm.This will ensure that fuel is suppliedto the engine (p. ).

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17.0 in (433 mm)22.2 in (563 mm)27.7 in (703 mm)

25

POWER REQUIREMENTS

INSTALLATION POSITION

BOAT TRANSOMREQUIREMENTS

INSTALLATION

CENTER LINE

TTRRAANNSSOOMM HHEEIIGGHHTT0 50 mm(0 2.0 in)

Type:S:L:X:

Correct and secure installation isessential for safe boating and goodperformance. Follow the installationinstructions provided in this manual.

Transom Height

Before installation, check to be surethat the outboard motor does notexceed the recommended maximumhorsepower for the boat on which itis to be installed. Refer to the boat’scertification plate for recommendedmaximum horsepower. If thecertification plate information is notavailable, contact the boat dealer ormanufacturer.

For most applications, the outboardmotor should have a horsepowerrating which provides 80% of themaximum recommended horsepowerfor the boat.

Install the outboard motor on thecenter of the boat transom.

Honda BF8D/BFP8D/BF9.9D andBFP9.9D outboard motors can beinstalled on a boat transom having athickness range of 1.3 2.2 inches(35 57 mm).

The antiventilation plate of theoutboard motor should be 0 2.0inches below the bottom of the boat.With the boat in the water and loaded,the antiventilation plate should beabout 3.9 inches below the surface ofthe water.

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ATTACHMENT

INSTALLATION

CLAMP SCREW

WASHER

BOLT

LOCK NUT

MOUNTING HOLE

WASHER

TRANSOMBOARD

If the outboard motor is installed toolow, the boat will squat and be hardto plane, it will tend to porpoise, andhigh-speed stability will be reduced.

If the outboard motor is installed toohigh, that will cause ventilation.

Optimum installation height varieswith boat type and bottom shape.Contact the boat manufacturer forany special recommendations that areunique to a specific model of boat.

If the transom needs to be modifiedto accommodate the outboard motor,contact the boat manufacturer andfollow their recommendations forcorrective action.

Attach the stern bracket to the boattransom by tightening the clampscrews.

Attach a rope from the boat to thehole in the stern bracket. This willhelp to prevent accidental loss of theoutboard motor.

You may further secure the outboardmotor by bolting the stern bracket tothe boat transom. Use the optionalmounting bolt and nut kit or othergood quality stainless steel bolts, nuts,and washers. Apply silicone sealantto the bolt holes.

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TRANSOM ANGLEADJUSTMENT

BATTERY CONNECTIONS

Types With Electric Starter

Types Without Electric Starter

INSTALLATION

BATTERY

TO ACCESSORIESUse the transom angle adjustment rod(p. ) to adjust the angle of theoutboard motor so the propeller isperpendicular to the surface of thewater.

Honda BF8D/BFP8D/BF9.9D andBFP9.9D outboard motors produce a12-volt, 12-ampere battery-chargingcurrent and are equipped forconnection to a 12-volt battery. Thebattery-charging circuit is protectedby a 20-ampere fuse located in theengine compartment.

The outboard motor’s 12-volt outputis intended for battery charging only.Lights and electrical accessories forthe boat should be connected to thebattery.

The battery should be kept in acorrosion-resistant battery box that issecurely mounted in a location awayfrom the fuel tank and protectedfrom water and direct sunlight.

These types are equipped withbattery cables. The positive (+) cablehas a red band at the batteryconnector. The negative (-) cable hasa black band at the battery connector.

For electric starter operation, use a12-volt battery with an ampere-hourrating of at least 35 Ah.

These types are equipped with a 12-volt dc battery-charging receptaclewhich can be wired to a 12-voltbattery to power lights and electricalaccessories for the boat.

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12V-35AH

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Plug and Receptacle(models without electric starter)

Battery

Minimum Requirements

Battery Terminals

INSTALLATION

COVER

TO ACCESSORIES

RED

BATTERY

DC RECEPTACLE

( ) TERMINAL

BLACK or GREEN

TTOO BBAATTTTEERRYY( ) TERMINAL

To prepare the outboard motor forconnection to a battery, pull the coverout of the DC receptacle, connectyour battery charging wires to thereceptacle. Attach the connected DCreceptacle on the holder on the tillerarm.

The receptacle is provided with acover, which should be attachedwhen the plug is removed, in order tokeep the receptacle clean and dry.

The negative (-) battery cable shouldalways be removed from the batterywhen connecting or disconnectingthe positive (+) battery cable, so toolscannot cause a short circuit if theytouch a grounded part while beingused on the positive (+) batteryterminal fitting.

Connect the positive (+) battery cableto the positive (+) battery terminal,then connect the negative (-) batterycable to the negative (-) batteryterminal.

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INSTALLATION

Be caref ul to avoid connecting thebattery in reverse polarity, as thatwill damage the battery-chargingsystem in the outboard motor.

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Improperly maintainingthis outboard motor, orfailing to correct a problembefore operation, couldcause a malfunction inwhich you could beseriously injured.

Always perform apreoperation inspectionbefore each operation, andcorrect any problem.

30

ARE YOU READY TO GETUNDER WAY

Safety

KnowledgeIS YOUR OUTBOARDMOTOR READY TO GO

BEFORE OPERATION

Your safety is your responsibility. Alittle time spent in preparation willsignificantly reduce your risk ofinjury.

Read and understand this manual.Know what the controls do and howto operate them.

Familiarize yourself with theoutboard motor and its operationbefore you get under way. Knowwhat to do in case of emergencies.

Familiarize yourself with all lawsand regulations relating to boatingand the use of outboard motors.

Always wear a PFD (PersonalFlotation Device) while on the boat.

Attach the emergency stop switchlanyard securely to your PFD or toyour wrist.

For your safety, and to maximize theservice life of your equipment, it isvery important to take a fewmoments before you operate theoutboard motor to check its condition.Be sure to take care of any problemyou find, or have your authorizedHonda Marine dealer correct it,before you operate the outboardmotor.

Before beginning your preoperationchecks, be sure the ignition switch isin the OFF position.

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31

Safety Inspection Maintenance Inspection

BEFORE OPERATION

Look around the outboard motorfor signs of oil or gasoline leaks.

If you are using the portable fueltank, make sure it is in goodcondition and properly secured inthe boat (p. ).

Check that the fuel hose isundamaged and properlyconnected (p. ).

Wipe up any spills before startingthe engine.

Check the stern bracket to be surethe outboard motor is securelyinstalled.

Check that all controls areoperating properly.

Replace any damaged parts.

Check that all fasteners are inplace and securely tightened.

Check the engine oil level (p. ).Running the engine with a low oillevel can cause engine damage.

Check to be sure the propeller isundamaged, and the castle nut issecured with the cotter pin (p. ).

Check that the anodes are securelyattached to the gear case (p. )and are not excessively worn. Theanodes help to protect the outboardmotor from corrosion.

Make sure the tool kit andemergency starter rope areonboard (p. ). Replace anymissing items.

Check the fuel level in the fueltank (p. ).

Check that the battery fluid isbetween the upper and lower levels,and the battery leads are connectedsecurely.

34

34

56

70

69

53

63

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32

SAFE OPERATINGPRECAUTIONS

BREAK-IN PROCEDURE

Break-in period: 10 hours

First 15 minutes:

Next 45 minutes:

Next 60 minutes:

Next 8 hours:

OPERATION

IMPORTANT SAFETYINFORMATION

BEFORE OPERATION.

To safely realize the full potential ofthis outboard motor, you need acomplete understanding of itsoperation and a certain amount ofpractice with its controls.

Before operating the outboard motorfor the first time, please review the

on page and thechapter titled

For your safety, avoid starting oroperating the engine in an enclosedarea. Your engine’s exhaust containspoisonous carbon monoxide gaswhich can collect rapidly in anenclosed area and cause illness ordeath.

Proper break-in operation allows themoving parts to wear in smoothly forbest performance and long servicelife.

Run the engine at trolling speed. Usethe minimum throttle openingnecessary to operate the boat at a safetrolling speed.

Run the engine up to a maximum of2,000 to 3,000 rpm, which is about10% to 30% of maximum throttleopening.

Run the engine up to a maximum of4,000 to 5,000 rpm, which is about50% to 80% of maximum throttleopening.

Short full-throttle bursts are OK, butdo not operate the enginecontinuously at full throttle.

For boats that plane easily, bring theboat up on plane, and then reduce thethrottle opening to the recommendedrpm range.

Do not run the engine at full throttlefor more than 5 minutes at a time.

7

02/03/25 20:55:54 31ZW8A00_033

33

TRANSOM ANGLEADJUSTMENT(R type/XH type)

(SH type/LH type)

OPERATION

ADJUSTING ROD

TO LOCKLOCKED POSITION

PINCHLOCKED POSITION

TOCHANGE

ADJUSTING RODUNLOCKEDPOSITION

IDLE EXHAUST PORT

Do not allow water to enter the idleexhaust port or the engine can bedamaged.

The transom angle adjusting rodlimits the tilt angle of the outboardmotor when fully lowered.

To adjust, first tilt the outboardmotor so it is not resting on the rod.

Proper adjustment prevents theoutboard motor from being trimmedtoo low (p. ).

Push the rod in and turn the end ofthe rod up, so the latch will fall intoline with the rod.

Pinch the end of the rod.

Remove the rod and reinsert it in thedesired position.

Push the rod in and turn the end ofthe rod down, so the latch will fall tothe locked position. Then release therod.

Push the rod in and hook the end ofthe rod. Then release the rod.

(R type/XH type)

(R type/XH type)

(SH type/LH type)

48

(SH type/LH type)

02/03/25 20:56:07 31ZW8A00_034

Gasoline is highlyflammable and explosive.

You can be burned orseriously injured whenhandling fuel.

Wipe up spillsimmediately.

Handle fuel onlyoutdoors.

Stop the engine and keepheat, sparks, and flameaway.

34

PORTABLE FUEL TANK FUEL HOSE CONNECTIONS

OPERATION

FUEL HOSE CONNECTOR

(OUTBOARD MOTOR SIDE)

FUEL HOSE CONNECTOR

(FUEL TANK SIDE)

Place the portable fuel tank in a well-ventilated location, away from directsunlight, to reduce the possibility of agasoline vapor explosion.

To ensure that the outboard motorwill be able to draw fuel from thetank, place the tank within 6 feet ofthe outboard motor and not morethan 3 feet below the fuel connectoron the outboard motor.

Secure the portable fuel tank in theboat, so it won’t move around andbecome damaged.

Before use, open the fuel tank ventby turning the vent knob at least 2 or3 turns counterclockwise.

Connect the fuel hose to the tank andthe outboard motor, as shown. Besure both connectors snap securelyinto place.

02/03/25 20:56:22 31ZW8A00_035

35

FUEL PRIMING STARTING THE ENGINE

OPERATION

ENGINE STOPSWITCH

LANYARD

OUTLET END(MOTOR)

INLET END(TANK)

PRIMING BULB

SWITCH CLIP


Do not squeeze the priming bulbwhen the engine is running becausethat could flood the carburetors.

Check to be sure there are no fuelleaks before starting the engine.

Hold the priming bulb with the outletend higher than the inlet end.Squeeze the priming bulb severaltimes, until it feels firm, indicatingthat fuel has reached the carburetor.

Put the emergency stop switch clipin the engine stop switch, andattach the lanyard to your PFD(Personal Flotation Device) or toyour wrist, as shown.

The engine will not start or run,unless the clip is in the switch.

The emergency stop switch clipand lanyard system is a safetydevice that will stop the engine ifyou fall away from the controlswhile operating the boat.

Always attach the lanyard to yourPFD, or to your wrist, beforestarting the engine.

1.

02/03/25 20:56:35 31ZW8A00_036

36

OPERATION

CHOKE KNOB

THROTTLE GRIP

START POSITION

POINTER

N (neutral)

GEARSHIFT LEVER

(manual choke type)Check the position of the gearshiftlever. It must be in the N (neutral)position for starting.

The engine will not start if thegearshift lever is in the F (forward)or R (reverse) position.

Do not turn the throttle grip beforestarting and align the STARTposition with the pointer forstarting the engine.

To start a cold engine, pull thechoke knob to the CLOSEDposition. To restart a warm engine,leave the choke knob in the OPENposition.

2.3.

4.

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37

OPERATION

STARTER GRIP

ELECTRIC STARTERBUTTON

Using the electric starter f or morethan 5 seconds at a time willoverheat the starter motor and candamage it.

Pushing the electric starter buttonwhile the engine is running candamage the starter motor andf lywheel.

TAKING CARE OFUNEXPECTED PROBLEMS,

Recoil starterPull the recoil starter grip slowlyuntil you feel resistance, then pullbriskly.

Return the starter grip gently.

Electric starter(electric starter model)Press the electric starter button andhold it there until the engine starts.

When the engine starts, release thebutton.

If the engine fails to start within 5seconds, release the button, andwait at least 10 seconds beforeoperating the starter again.

If the choke knob was pulled tothe CLOSED position to start theengine, gradually push it to theOPEN position as the enginewarms up.

Also, as the engine warms up, thethrottle grip can be turned to theSLOW position without stalling.

Before getting under way, allowthe engine to warm up sufficientlyto ensure good performance.

During the warm-up period, checkthe oil pressure indicator (p. )and cooling system indicator (p.

).

If the indicators show anyabnormal condition, immediatelystop the engine and determine thecause of the problem. Refer to

p..

5.

6.

7.

22

23

78

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38

R Type(remote control)

OPERATION

SWITCH CLIP LANYARD

N (neutral)

CONTROLLEVER

Side-Mount Type

For panel-mount or top-mountremote control information, refer tothe instructions provided with theremote control equipment.

Put the emergency stop switch clipin the emergency stop switch, andattach the lanyard to your PFD(Personal Flotation Device) or toyour wrist, as shown.

The engine will not start or run,unless the clip is in the switch.

The emergency stop switch clipand lanyard system is a safetydevice that will stop the engine ifyou fall away from the controlswhile operating the boat.

Always attach the lanyard to yourPFD, or to your wrist, beforestarting the engine.

Set the control lever in the N(neutral) position.

The engine will not start if the F(forward) or R (reverse) gears areengaged.

1.

2.

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39

OPERATION

IGNITION SWITCH KEY

ONSTARTOFFFAST IDLE

FAST IDLE LEVER

FREEACCELERATIONRANGE

Using the electric starter f or morethan 5 seconds at a time willoverheat the starter motor and candamage it.

Turning the ignition switch key tothe START position while theengine is running can damage thestarter motor and f lywheel.

To start a cold engine, leave thefast idle lever in the OFF (fullylowered) position.

To restart a warm engine, raise thefast idle lever.

Fast idle lever cannot be raisedunless the control lever is in the N(neutral) position.

The control lever cannot be movedaway from the N (neutral) positionunless the fast idle lever is lowered.

Turn the ignition switch key to theSTART position and hold it thereuntil the engine starts.

When the engine starts, release thekey, allowing it to return to the ONposition.

If the engine fails to start within 5seconds, release the key and waitat least 10 seconds beforeoperating the starter again.

3. 4.

02/03/25 20:57:24 31ZW8A00_040

40

EMERGENCY STARTING

OPERATION

UNLATCH

ENGINE COVER LATCH

FAST IDLE LEVER

TAKINGCARE OF UNEXPECTEDPROBLEMS,

If the battery is discharged, or thestarter motor and the recoil starter areinoperative, you can start the enginemanually using the emergency starterrope supplied with the tool kit.

If the fast idle lever was used tostart the engine, gradually lowerthe lever as the engine warms up.

When the fast idle lever is fullylowered, the control lever can bemoved away from the N (neutral)position.

Before getting under way, allowthe engine to warm up sufficientlyto ensure good performance.

Above 41°F (5°C), warm up theengine for 2 or 3 minutes.

Below 41°F (5°C), warm up theengine for at least 10 minutes at2,000 rpm.

During the warm-up period,check the oil pressure indicator(p. ), overheating indicator (p.

), and cooling systemindicator (p. ).

If the indicators show anyabnormal condition,immediately stop the engine anddetermine the cause of theproblem. Refer to

p. .Unlatch and remove the enginecover.

1.

6.

5.22

2223

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02/03/25 20:57:37 31ZW8A00_041

－

41

OPERATION

RECOIL STARTERASSEMBLYFLANGE BOLT

FLYWHEEL (STARTER PULLEY)

STARTER ROPEKNOT

RECOIL STARTERASSEMBLY

NEUTRAL START CABLE

TAKING CARE OFUNEXPECTED PROBLEMS,

Move the shift lever to the F(forward) position. Loosen theneutral start cable lock nut anddisconnect the neutral start cable.Unscrew the three bolts andremove the recoil starter assembly.

Set the controls the same as fornormal starting (see pages

). Use the choke and fast idlecontrols if needed.

Turn the ignition switch key to theON position.

Set the knotted end of theemergency starter rope in the notchin the flywheel. Wind the ropeclockwise around the flywheel, asshown.

Pull the emergency starter ropeslowly until resistance is felt, thenpull briskly.

Keep away from moving partswhile pulling the rope.

If necessary, rewind the rope andpull again. If the engine does notstart after several attempts, refer to

p..

5.4.2.

3.35

40

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02/03/25 20:57:50 31ZW8A00_042

Exposed moving parts cancause injury.

Do not operate theoutboard motor withoutthe engine cover.

Use extreme care wheninstalling the enginecover.

42

OPERATION

If the choke and fast idle control(s)was used to start the engine, returnthe control(s) to the normaloperating position as the enginewarms up.

During the warm-up period, checkthe oil pressure indicator (p. ),overheating indicator (p. ), andcooling system indicator (p. ).

Leave the recoil starter assemblyoff, but install the engine cover (p.

), and lock it in place bylatching the engine cover latch.

If it was necessary to remove theemergency stop switch lanyardfrom your wrist to perform theemergency starting procedure, besure the lanyard is attached to yourwrist before operating theoutboard motor.

Have your closest authorizedHonda marine dealer check yourelectrical system and correct theproblem, so you can use theelectric starter.

The recoil starter assembly (p. )should be reinstalled after theelectric starter is working again.Install the recoil starter assemblywith the engine stopped.

6.

7.

8.

9.22

2223

2041

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43

Normal Engine StoppingSTOPPING THE ENGINE

Emergency Engine Stopping

OPERATION

SWITCH CLIPSWITCH CLIP

LANYARD

SLOW

THROTTLE GRIP

N (neutral)

CONTROLLEVER

LANYARD

PULL

Move the throttle grip to theslowest speed and control gears toN (neutral) position.

To stop the engine in an emergency,pull the clip out of the engine oremergency stop switch by pulling thelanyard.

We suggest that you stop the enginethis way occasionally to verify thatthe engine or emergency stop switchis operating properly.

1.

02/03/25 20:58:11 31ZW8A00_044

44

OPERATION

ENGINE STOP SWITCH

IGNITION SWITCH KEY

When the boat is not in use,remove and store the ignition keyand the emergency stop switch clipand lanyard.

Turn the ignition switch key to theOFF position or press the enginestop switch until the engine stops.

3.

2.

02/03/25 20:58:18 31ZW8A00_045

45

GEARSHIFTING ANDTHROTTLE OPERATION


OPERATION

FIX

THROTTLE GRIP

THROTTLEFRICTION DIAL

RREELLEEAASSEE

THROTTLE GRIP

SLOW

R (reverse)

N (neutral)

F (forward)

Use the throttle friction dial to helphold a constant throttle setting whilecruising.

Turn the dial clockwise to increasethrottle grip friction for holding aconstant speed.

Turn the dial counterclockwise todecrease friction for easy griprotation.

To shift gears, turn the throttle grip tothe SLOW position, then move thegearshift lever to select F (forward),N (neutral) or R (reverse) gears.

The engine can be started with thegearshift lever in the N (neutral)position only.

The throttle grip can be turned to theFAST position only when thegearshift lever is in the F (forward)position.

02/03/25 20:58:29 31ZW8A00_046

46

R Types(remote control)

OPERATION

CONTROLLEVER

NEUTRALRELEASE LEVER

THROTTLEFRICTIONADJUSTER

TO INCREASEFRICTION

TO DECREASEFRICTION

Side-Mount Type

To shift gears, move the control leverto select F (forward), N (neutral) andR (reverse) gears.

The control lever cannot be movedfrom the N (neutral) position unlessthe neutral release lever is squeezed.

Moving the control lever beyond thegear selection range increases enginespeed.

Adjust the throttle friction adjuster sothe control lever will hold a constantthrottle setting while cruising.

02/03/25 20:58:40 31ZW8A00_047

47

(remote control)R TypeSTEERING


OPERATION

STEERING FRICTION LEVER

LLOOCCKKFFRREEEE

Steer by moving the tiller handleopposite the direction you want theboat to turn.

Use the steering friction lever to helphold a steady course while cruising.

Move the lever to the LOCKdirection to increase steering frictionfor holding a steady course.

Move the lever to the FREE directionto decrease friction for easy turning.

Steer the boat in the same manner asan automobile.

02/03/25 20:58:52 31ZW8A00_048

48

CRUISING

Engine Speed

Trim

OPERATION

Install the outboard motor at the besttrim angle for stable cruising andmaximum power.

Trim angle too large: Incorrectcauses boat to ‘‘squat’’.

Trim angle too small: Incorrectcauses boat to ‘‘plow’’.

It is necessary to trim the angle of theoutboard motor to compensate forchanges in boat load, weightdistribution, water conditions, orpropeller selection.

Under normal conditions, the boatwill perform best when theantiventilation plate is level with thewater.

When cruising into a high wind, trimthe outboard motor down slightly tolevel the boat and improve stability.With a tail wind, trim the outboardmotor up slightly.

If engine speed becomes unstable athigh speed due to activation of theoverrev limiter, reduce speed andcheck the trim angle of the outboardmotor.

If, for example, the outboard motoris tilted excessively, or propellerventilation occurs during a sharp turn,the engine may overrev, activatingthe overrev limiter.

The engine is equipped with anoverrev limiter to prevent thepossibility of mechanical damagefrom excessive engine speed.

For rough water conditions or largewaves, slow down to prevent thepropeller from rising out of the water.

For best fuel economy, limit thethrottle opening to 80%. Use thethrottle friction control (p. ) tohelp you hold a steady speed.

45

02/03/25 20:59:04 31ZW8A00_049

49

SHALLOW WATEROPERATION

OPERATION

45°

30°

Motor Angle (Cruising)

O.K.

CORRECTGIVES MAXIMUM PERFORMANCE

Do not use the tiller handle as alever to raise the outboard motor.Applying excessive f orce to the tillerhandle can damage it.

Excessive trim/tilt angle duringoperation can cause propellerventilation, overheating, and waterpump damage.

To tilt the outboard motor, move thetilt lever to the TILT position, thenraise the outboard motor to the 30° or45° position by pulling on the enginecover grip.

While the outboard motor is tilted,proceed at a low speed, and do notoperate the outboard motor in reverse.The outboard motor will risesuddenly if operated in reverse.

Monitor water flow from the coolingsystem indicator (p. ) to be surethe outboard motor is not tilted sohigh the water intake is out of thewater.

When operating in shallow water, tiltthe outboard motor, using the tiltlever, so the propeller and gear casewon’t hit the bottom.

23

02/03/25 20:59:16 31ZW8A00_050

50

MOORING, BEACHING,LAUNCHING

OPERATION

71° (when mooring)

ENGINE COVER GRIP

TILT LEVER

TTIILLTT

RRUUNN

An excessive tilt angle duringoperation can cause propellerventilation, overheating, and waterpump damage.

To raise the outboard motor out ofthe water while the boat is moored, orfor maximum clearance whenbeaching or launching, tilt theoutboard motor to the 71° position.

Stop the engine before tilting theoutboard motor. The 71° position isnot an operating position.

Raise and lower the outboard motoras described on p. .

To return the outboard motor to thenormal operating position, move thetilt lever to the RUN position, raisethe outboard motor slightly todisengage the tilt mechanism, thenslowly lower the outboard motor.

49

02/03/25 20:59:25 31ZW8A00_051

Improperly maintainingthis outboard motor, orfailure to correct a problembefore operation, can causea malfunction in which youcould be seriously hurt orkilled.

Always follow theinspection andmaintenancerecommendations andschedules in this owner’smanual.

51

THE IMPORTANCE OFMAINTENANCE

Maintenance, replacement, orrepair of the emission controldevices and systems may beperformed by any marine enginerepair establishment or individual,using parts that are ‘‘certified’’ toEPA standards.

SERVICING YOUR OUTBOARD MOTOR

Good maintenance is essential forsafe, economical, and trouble-freeoperation. It will also help reduce airpollution.

To help you properly care for youroutboard motor, the following pagesinclude a maintenance schedule,routine inspection procedures, andsimple maintenance procedures usingbasic hand tools. Other service tasksthat are more difficult, or requirespecial tools, are best handled byprofessionals and are normallyperformed by a Honda technician orother qualified mechanic.

The maintenance schedule applies tonormal operating conditions. If youoperate your outboard motor underunusual conditions, consult anauthorized Honda marine dealer forrecommendations applicable to yourindividual needs and use.

Remember that your authorizedHonda marine dealer knows youroutboard motor best and is fullyequipped to maintain and repair it.

To ensure the best quality andreliability, use only new, genuineHonda parts or their equivalents forrepair and replacement.

02/03/25 20:59:34 31ZW8A00_052

－

－

－

Failure to properly followmaintenance instructionsand precautions can causeyou to be seriously hurt orkilled.

Always follow theprocedures andprecautions in the owner’smanual.

52

MAINTENANCE SAFETY Safety Precautions

Burns from hot parts.

Injury from moving parts.

Carbon monoxide poisoningfrom engine exhaust.


Some of the most important safetyprecautions follow. However, wecannot warn you of everyconceivable hazard that can arise inperforming maintenance. Only youcan decide whether or not you shouldperform a given task.

Make sure the engine is off beforeyou begin any maintenance orrepairs. This will eliminate severalpotential hazards:

Read the instructions before youbegin, and make sure you have thetools and skills required.

To reduce the possibility of fire orexplosion, be careful whenworking around gasoline. Use onlya nonflammable solvent, notgasoline, to clean parts. Keepcigarettes, sparks, and flames awayfrom all fuel-related parts.

Wear gloves when handling thepropeller to protect your handsfrom sharp edges.Let the engine and exhaust

system cool before touching.

Do not run the engine unlessinstructed to do so.

Be sure there is adequateventilation whenever youoperate the engine.

02/03/25 20:59:47 31ZW8A00_053

×

×

53

TOOL KIT ANDEMERGENCY STARTERROPE


OWNER’S MANUAL

8 10 mm WRENCH

10 12 mm WRENCH

OIL CHECK SCREWDRIVER

DRIVER

PLIERS

TOOL BAG

16.5 mm SOCKETWRENCH

SPARE SWITCH CLIPEMERGENCY STARTER ROPE

The following tools are supplied withthe outboard motor for simplemaintenance procedures andemergency repairs. An emergencystarter rope is also supplied. Keepthese items on the boat, so they willalways be available if you need them.

02/03/25 20:59:54 31ZW8A00_054

○

○

○

○

○○

○○○

○

○

○○

○○○

○

○

○

54

MAINTENANCE SCHEDULE


ITEM

REGULAR SERVICE PERIODPerform at every indicated month oroperating hour interval, whichevercomes first.

Check levelChangeChangeReplaceCheckCheck-adjustCheck-adjustCheck-adjustCheck-adjustReplaceCheckGreaseClean

Engine oil

Gear case oilEngine oil filterStarter ropeCarburetor linkageIdling speedValve clearanceSpark plugs

Propeller and cotter pinLubricationFuel tank and tank filter

Every yearor

200 hrs.

(2)

Every6 monthsor 100 hrs.

(2)

(2)(2)

(1)

First monthor

20 hrs.

(2)

(2)(2)(2)

(1)

Each use After use

(3)

02/03/25 21:00:05 31ZW8A00_055

○○

○○

○

○

○

○

○○

55


ITEM

REGULAR SERVICE PERIODPerform at every indicated month oroperating hour interval, whichevercomes first.

Every yearor

200 hrs.

(2)

(2)

First monthor

20 hrs.

(2)

Fuel filter

ThermostatFuel line

Bolts and NutsCrankcase breather tubeAnode

Cooling water passages

CheckReplaceCheckCheckReplaceCheck-tightnessCheckCheckCheck level-tightnessClean

After use

(4)

Every 6 monthsor

100 hrs.

(2)

Each use

(3)

Every 2 years (if necessary) (2)

Battery and cable connection

Emission related items.

Lubricate more frequently when used in salt water.

These items should be serviced by an authorized Honda marine dealer, unless you have the proper tools and are mechanically proficient.Refer to the Honda shop manual for service procedures.

For professional commercial use, log hours of operation to determine proper maintenance intervals.

When operating in salt water, turbid or muddy water, the engine should be flushed with clean water after each use.

(1)

(2)

(3)

(4)

02/03/25 21:00:20 31ZW8A00_056

56

ENGINE COVER REMOVALAND INSTALLATION

Engine Oil Level Check


ENGINE COVER LATCH

UPPERLIMIT

LOWERLIMIT

OIL FILLER CAP

OIL LEVEL DIPSTICK

Running the engine with a low oillevel can cause engine damage.

Check the engine oil level with theengine stopped and the outboardmotor in the vertical position.

To install the engine cover, place thecover on the outboard motor, thenlatch the engine cover latch securely.

To remove the engine cover, unlatchthe engine cover latch, then lift theengine cover off the outboard motor.

The engine cover latch fastens theengine cover to the outboard motor.

Unlatch and remove the enginecover.

Remove the dipstick and wipe itclean.

Insert the dipstick all the way in,then remove it and check the oillevel shown on the dipstick.

If the oil level is low, remove theoil filler cap, and add oil to reachthe upper limit mark shown on thedipstick. Use the oil recommendedon p. .

Install the oil filler cap and tightenit securely.

Install and lock the engine cover.

1.

2.

3.

4.

5.

6.

59

02/03/25 21:00:36 31ZW8A00_057

1.1 US qt (1.0 , 0.9 Imp qt)

1.4 US qt (1.3 , 1.1 Imp qt)

57

Engine Oil Change


ENGINE OIL DRAIN SCREW

Improper disposal of engine oilcan be harmf ul to the environment.If you change your own oil, pleasedispose of the used oil properly.Put it in a sealed container, andtake it to a recycling center. Donot discard it in a trash bin ordump it on the ground.

An engine oil evacuation/fillingdevice may be used to remove/addthe engine oil.

Drain the used oil while the engine iswarm. Warm oil drains quickly andcompletely.

Unlatch and remove the enginecover (p. ).

Remove the oil filler cap, andremove the engine oil drain screw.

Allow the used oil to draincompletely, then reinstall theengine oil drain screw, and tightenit securely.

With the outboard motor in avertical position, fill to the upperlimit mark on the dipstick (p. )with the recommended oil.

Engine oil refill capacity:Without oil filter change:

With oil filter change:

Install the oil filler cap and tightenit securely.


1.

2.

3.

4.

5.

6.

56

56

02/03/25 21:00:50 31ZW8A00_058

16 lbf·ft (22 N·m , 2.2 kgf·m)

58

Oil Filter Change


OIL FILTER

USE A SUITABLE TOOL Use only a genuine Honda oilf ilter or a f ilter of equivalentquality specif ied f or your model.Using the wrong f ilter, or a non-Honda f ilter which is not ofequivalent quality, may causeengine damage.

Running the engine without watercan cause serious engine damage.If you are changing the oil f ilterwhile the outboard motor is out ofthe water, use the water hoseadapter (optional part) and a hoseto supply water.

Drain the engine oil, and reinstallthe drain screw (see Engine OilChange on p. ).

Unscrew the six bolts and removethe R. engine under cover.

Use a suitable tool to remove theoil filter, and throughly drain thefilter into the used oil container.

Clean the oil filter mounting base,and coat the gasket of the new oilfilter with clean engine oil.

Screw on the new filter by handuntil it contacts the engine, thenuse a suitable tool to tighten thefilter an additional 7/8 turn.

OIL FILTER TIGHTENINGTORQUE:

Fill the crankcase with thespecified amount (p. ) of therecommended oil.

Start the engine and check forleaks.

Stop the engine, and check the oillevel as described on page . Ifnecessary, add oil to bring the oillevel to the upper limit mark on thedipstick.

1.

2.

3. 4.

5.

6.

7.

8.

5757

56

02/03/25 21:01:04 31ZW8A00_059

SAE Viscosity Grades

AMBIENT TEMPERATURE

59

Engine Oil Recommendations


Oil is a major factor affectingperformance and service life. Use4-stroke automotive detergent oil.

The SAE oil viscosity and serviceclassification are in the API label onthe oil container. Honda recommendsthat you use API SERVICE categorySG, SH or SJ oil with the ‘‘starburst’’certification mark displayed on thecontainer.

SAE 10W-30 is recommended forgeneral use. Other viscosities shownin the chart may be used when theaverage temperature in your area iswithin the recommended range.

02/03/25 21:01:12 31ZW8A00_060

60

Lubrication Points


PROPELLER SHAFT

TILLER HANDLE THROTTLE REEL TILT STOPPER

CLAMP SCREWS

ADJUSTING ROD

SWIVEL CASE

Apply anticorrosion oil to pivot surf aces where greasecannot penetrate.

Apply Honda Marine Corrosion Inhibitor (or equivalent) to all areas under the engine cover except the belts.

Wipe the outside of the engine with a cloth dipped in oil.Apply marine anticorrosion grease to the following parts:lubrication, then every 20 hours or a month after the dateof purchase for initial 100 hours or 6 months.

02/03/25 21:01:20 31ZW8A00_061

－－

－－

U16FER9 (DENSO)CR5EH-9 (NGK)

61

Spark Plug Service


SPARK PLUGWRENCH

SPARK PLUG CAP0.031 0.035 in(0.80 0.90 mm)

Incorrect spark plugs can causeengine damage.

RECOMMENDED SPARK PLUGS:

Unlatch and remove the enginecover (p. ).

Disconnect the spark plug capsfrom the spark plugs.

Remove the spark plugs with aspark plug wrench and screwdriversupplied in the tool kit.

Inspect the spark plugs. Replacethem if the electrodes are worn, orif the insulators are cracked orchipped. Clean the spark plugswith a wire brush if you are goingto reuse them.

Measure the spark plug electrodegap with a suitable gauge. The gapshould be 0.031 0.035 inches(0.80 0.90 mm).

1.

2.

3.

4. 5.

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62


Loose spark plugs can overheatand damage the engine.Overtightening the spark plugscan damage the threads in thecylinder head.

Install the spark plugs carefully,by hand, to avoid cross-threading.

After each spark plug seats, tightenwith a spark plug wrench suppliedin the tool kit to compress thesealing washer.

If reinstalling used spark plugs,tighten 1/8 - 1/4 turn after thespark plugs seat.

If installing new spark plugs,tighten 1/2 turn after the sparkplugs seat.

Attach the spark plug caps.


6.

7.

8.

9.

02/03/25 21:01:40 31ZW8A00_063

3.2 US gal (12 , 2.6 Imp gal)

63

REFUELING

Portable Fuel Tank(optional equipment)


VENT KNOBCLOSE

FUEL CAP

OPEN

FUEL GAUGE

SAFE FILL LEVEL

FUEL TANK CAPACITY:

Remove the fuel tank from the boatfor refueling.

Check the fuel gauge and refill thetank when necessary.

Refuel in a well-ventilated area. Fillthe tank to the SAFE FILL LEVELline.

After refueling, install the cap andtighten it securely. Turn the ventknob clockwise to the CLOSEDposition, and return the fuel tank tothe boat.

To refuel, turn the vent knobcounterclockwise to the OPENposition, and unscrew the fuel tankcap.

02/03/25 21:01:53 31ZW8A00_064



Handle fuel onlyoutdoors.Wipe up spillsimmediately.


64

FUEL RECOMMENDATIONS


Use unleaded gasoline with a pumpoctane rating of 86 or higher.

Your outboard motor is certified tooperate on unleaded gasoline.Unleaded gasoline produces fewerengine and spark plug deposits andextends exhaust system life.

Never use stale or contaminatedgasoline or an oil/gasoline mixture.Avoid getting dirt or water in the fueltank.

Occasionally you may hear a light‘‘spark knock’’ or ‘‘pinging’’(metallic rapping noise) whileoperating under heavy loads. This isno cause for concern.

Never refill the fuel tank inside abuilding where gasoline fumes mayreach flames or sparks. Keepgasoline away from appliance pilotlights, barbecues, electric appliances,power tools, etc.

Spilled fuel is not only a fire hazard,it causes environmental damage.Wipe up spills immediately.

02/03/25 21:02:05 31ZW8A00_065



Stop the engine and keepheat, sparks, and flameaway.Handle fuel onlyoutdoors.Wipe up spillsimmediately.

65

Fuel Pump Filter Inspectionand Replacement


Running the engine with persistentspark knock or pinging can causeengine damage.

Distributor’s LimitedWarranty

If spark knock or pinging occurs at asteady engine speed, under normalload, change brands of gasoline. Ifspark knock or pinging persists, seean authorized Honda marine dealer.

Running the engine with persistentspark knock or pinging is misuse,and the

does not cover partsdamaged by misuse.

The fuel pump filter is located underthe engine cover, on the right side ofthe engine.

Water or sediment accumulated inthe filter can cause loss of power orhard starting. To prevent enginemalfunction, inspect the filter andreplace when necessary.

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66


FUEL FILTERENGINE COVER LATCH

UNLATCH

Unlatch and remove the enginecover for access to the fuel pumpfilter.

Inspect the filter for water and/orsediment accumulation.

If the filter is OK, reinstall it. Ifwater and/or sediment are present,replace the filter as described inthe following steps. Alwaysreplace the filter at the scheduledreplacement interval (p. ).

Disconnect the fuel hose from theoutboard motor, and place clampson the fuel hoses on each side ofthe filter to prevent fuel leakagewhen the fuel hoses aredisconnected.

3.

2.

1.

55

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67


ARROW(Fuel Flow Direction)

FUEL HOSEFUEL FILTER

Install the new filter on the fuelhoses, with the fuel flow arrowpointing toward the fuel pump asshown. Fuel flow will be impededif the filter is installed backward.

Remove the fuel tube clamps, andconnect the fuel hose to theoutboard motor. Check for leaks.


To ease tube removal, release thetube clips by squeezing the clipends together with pliers whilepulling off the tubes.

Remove the fuel tubes from theused filter, and discard the filter.

5.

6.

7.

4.

02/03/25 21:02:34 31ZW8A00_068

68

Portable Fuel Tank and FilterCleaning


TANK FILTER JOINT(Fuel Connector)

FILTER

Fuel Tank Filter

Fuel Tank

Unscrew the fuel hose connectorby turning it counterclockwise,then remove the fuel hoseconnector and fuel filter from thetank.

Clean the filter in nonflammablesolvent. Inspect the fuel tank filterand the connector O-ring. Replacethem if damaged.

Reinstall the filter and hoseconnector in the fuel tank. Tightenthe hose connector securely.

Empty the portable fuel tank into anapproved gasoline container. Use afunnel to avoid spilling fuel. Rinsethe fuel tank with nonflammablesolvent to remove any accumulatedsediment.

3.

1.

2.

02/03/25 21:02:43 31ZW8A00_069

69

Recoil Starter Rope Inspection Anode Replacement


RECOIL STARTER ROPE ANODES Painting or coating the anodes willdef eat their purpose and will lead torust and corrosion damage to theoutboard motor. The anodes must beexposed to the water in order toprotect the outboard motor.

Always keep the emergency starterrope on the boat in case the recoilstarter rope fails.

Inspect the recoil starter rope, andreplace it if it becomes frayed.

The anodes are located on each sideof the gearcase. They are made of asacrificial material that helps toprotect the outboard motor fromcorrosion.

Replace the anodes when they havebeen reduced to about half theiroriginal size, or if they are crumbling.

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70

Propeller Replacement


COTTER PINPROPELLER

THRUST WASHERCOTTER PIN

PLAINWASHER

CASTLENUT

TOWARDGEAR CASE

Removal Installation

Install the thrust washer with thegrooved side toward the gear case.

Use a genuine Honda cotter pinthe pin ends as shown.

Before replacing the propeller,remove the clip from the engine stopswitch to prevent any possibility ofthe engine being started while youare working with the propeller.

The propeller blades may have sharpedges, so wear heavy gloves toprotect your hands.

Remove the cotter pin, unscrew thecastle nut, remove the washer, thenremove the propeller and thrustwasher.

Install the propeller in the reverseorder of removal.

1.

02/03/25 21:03:04 31ZW8A00_071

71

STORAGE PREPARATION

Cleaning and Flushing

STORAGE

GARDEN HOSEADAPTER

Cleaning

Flushing With the HondaGarden Hose Adapter

Proper storage preparation isessential for keeping your outboardmotor troublefree and looking good.The following steps will help to keeprust and corrosion from impairingyour outboard motor’s function andappearance, and will make the engineeasier to start when you use theoutboard motor again.

Thoroughly clean and flush theoutboard motor with fresh water afteroperation in dirty water or salt water.

Wash the outside of the outboardmotor with clean, fresh water toremove mud, salt, seaweed, etc.

Disengage the emergency enginestop switch clip from the engine stopswitch, and pull the recoil starter ropeseveral times to expel any water

remaining in the water pump.

Touch up any damaged paint, andcoat areas that may rust with HondaCorrosion Inhibitor, or equivalent.Lubricate controls with a siliconespray lubricant.

Unlatch the engine cover latch andremove the engine cover (p. ),and install the garden hose adapter.

Attach a garden hose from a freshwater faucet to the garden hoseadapter.

Turn on the fresh water supply,and verify that there is good waterpressure at the outboard motor.

Flush the engine with fresh waterfor at least 10 minutes.

After flushing, remove thegarden hose adapter, reinstallthe engine cover.

1.

2.

3.

4.

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02/03/25 21:03:20 31ZW8A00_072

72

STORAGE

ANTIVENTILATION PLATE

Flushing Without the HondaGarden Hose Adapter

Running the engine without goodwater circulation can causeoverheating and water pumpdamage.

Distributor’s Limited Warranty.

It is necessary to run the engineduring the flushing procedure. Forsafety, remove the propeller from theoutboard motor (p. ).

Damage caused by running theoutboard motor without sufficientcooling water is not covered by the

Start the engine and run in (N)neutral at low speed for at least 10minutes.

After flushing, stop the engine,remove the water container, andreinstall the propeller (p. ).

Place a container under theoutboard motor, and fill it withclean, fresh water. The water levelmust be at least 2 inches above theantiventilation plate.

1.

2.

3.

70

70

02/03/25 21:03:28 31ZW8A00_073



Wipe up spillsimmediately.

Handle fuel onlyoutdoors.


73

Fuel

STORAGE

DRAIN SCREW

Distributor’s Limited Warranty

Gasoline will oxidize and deterioratein storage. Old gasoline will causehard starting, and it leaves gumdeposits that clog the fuel system. Ifthe gasoline in your fuel tank andcarburetor deteriorates during storage,you may need to have the carburetorand other fuel system componentsserviced or replaced.

The length of time that gasoline canbe left in your fuel tank andcarburetor without causing functionalproblems will vary with such factorsas gasoline blend, your storagetemperatures, and whether the fueltank is partially or completely filled.The air in a partially filled fuel tankpromotes fuel deterioration. Verywarm storage temperatures acceleratefuel deterioration. Fuel deteriorationproblems may occur within a fewmonths, or even less if the gasolinewas not fresh when you filled thefuel tank.

Thedoes not cover fuel system damageor engine performance problemsresulting from neglected storagepreparation.

You can avoid fuel deteriorationproblems by draining the fuel tankand carburetors.

Disconnect the fuel hose from theoutboard motor.

With the outboard motor in avertical position, place anapproved gasoline container belowthe fuel drain outlet, and use afunnel to avoid spilling fuel.Loosen the drain screw to drainfuel from the carburetor.

After the fuel has drained from thecarburetor, tighten the drain screwsecurely.

1.

2.

3.

02/03/25 21:03:41 31ZW8A00_074

74

STORAGE

Drain the portable fuel tank into anapproved gasoline container, or Ifyou need to store fuel in the fueltank, you can extend fuel storagelife by filling the fuel tank withfresh gasoline and adding a fuelstabilizer that is formulated forthat purpose. Firmly close the fuelcap vent knob.

4.

02/03/25 21:03:45 31ZW8A00_075

－

－

75

Engine Oil STORAGE PRECAUTIONS

STORAGE

CARRYING HANDLE

LUG

Lif ting the outboard motor by theengine cover, or using the installedoutboard motor as a handle or leverto move the boat, can damage theoutboard motor.

Change the engine oil and the oilfilter (p. ).

Remove the spark plugs (p. ),and remove the clip from theengine or emergency stop switch.

Pour a tablespoon (5 10 cm ) ofclean engine oil into each cylinder.

Pull the starter rope several timesto distribute the oil in the cylinders.

Reinstall the spark plugs (p. ).

Select a well-ventilated storage area.If possible, avoid storage areas withhigh humidity.

To carry the outboard motor, hold itby the carrying handle, or hold by thecarrying handle and the lug beneaththe engine cover latch, as shown.

If your portable fuel tank containsgasoline, store it away from anyappliance that operates with a flame,such as a furnace, water heater, orclothes dryer. Also avoid any areawith a spark-producing electric motor,or where power tools are operated.

1.

2.

3.

4.

5.

57 58

61

62

3

02/03/25 21:03:58 31ZW8A00_076

76

REMOVAL FROM STORAGE

STORAGE

PROTECTOR CASE PROTECTOR BEFOREOPERATION

Any other horizontal storage positionmay cause damage or oil leakage.

Cover the outboard motor to keep outdust. Do not use sheet plastic as adust cover. A nonporous cover willtrap moisture, promoting rust andcorrosion.

Check your outboard motor asdescribed in the

chapter of this manual.

If the cylinders were coated with oilduring storage preparation, theengine may smoke briefly at startup.This is normal.

If storing horizontally, be sure to foldthe tiller handle, and the outboardmotor rests on its case protectors. Besure all water has drained from theoutboard motor before placing it onits side, so no residual water canenter the engine exhaust port.

Store the outboard motor eithervertically or horizontally with thetiller handle side up.

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77

WITH OUTBOARD MOTORINSTALLED ON BOAT

WITH OUTBOARD MOTORREMOVED FROM BOAT

TRANSPORTING

CARRYING HANDLE

LUGMOTOR SUPPORT BAR(commercially available)

Lif ting the outboard motor by theengine cover, or using theinstalled outboard motor as ahandle or lever to move the boat,can damage the outboard motor.

When trailering a boat with theoutboard motor attached, leave theengine in the normal running position,if possible, and tighten the steeringfriction lever securely (p. ).

If there is insufficient road clearancein the normal running position, thentilt the outboard motor and use amotor support bar, or remove theoutboard motor from the boat. Referto the manufacturer’s instructions forusing a motor support bar.

Secure the outboard motor in eitherthe vertical or horizontal positionshown on p. .

To carry, hold the outboard motor bythe carrying handle, or hold by thecarrying handle and the lug beneathengine cover lock lever, as shown.

47

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02/03/25 21:04:18 31ZW8A00_078

78

TAKING CARE OF UNEXPECTED PROBLEMS

Recharge battery.Battery discharged.

Check battery.

Check fuses.

Use emergency startingprocedure (p. ), then takeoutboard motor to an authorizedHonda Marine dealer, or refer tothe shop manual.

Battery connections loose orcorroded.

Fuse(s) burnt out.

Starter malfunction, switchmalfunction, or electrical problemin the starting circuit.

Clean and tighten batteryconnections.

Replace fuse(s) (p. ).

Replace or repair faultycomponents as necessary.

ELECTRIC STARTER WILLNOT OPERATE

Possible Cause Correction

1.

2.

3.40

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02/03/25 21:04:31 31ZW8A00_079

79


CorrectionPossible CauseENGINE WILL NOT START

Check emergency stop switchclip.

Clip not inserted in stop switch. Insert clip in stop switch.

Leave fast idle lever OFF, unlessengine is warm (p. ).

Fast idle lever raised (side-mounttype).

Throttle grip not in STARTposition (tiller-handle type).

Turn throttle grip to STARTposition (p. ).

Choke OPEN (tiller-handle andmanual choke type).

Pull choke knob to CLOSEDposition, unless engine is warm (p.

).

Gearshift lever or control lever notin neutral position.

Shift to neutral (p. ).Check control positions.

1.

2. 15

14

36

39

02/03/25 21:04:44 31ZW8A00_080

80


CorrectionPossible CauseENGINE WILL NOT START(continued)

Check fuel. Out of fuel.

Fuel hose not primed.

Fuel pump filter or fuel tank filterclogged.

Bad fuel; boat stored withouttreating or draining gasoline, orrefueled with bad gasoline.

Spark plugs faulty, fouled orimproperly gapped.

Spark plugs wet with fuel (floodedengine).

Carburetor malfunction, fuel pumpfailure, ignition malfunction, stuckvalves, etc.

Refuel (p. ).

Squeeze priming bulb (p. ).

Replace fuel filters (p. ).


Fuel vent closed (portable fueltank).

Open fuel tank vent (p. ).

Take outboard motor to anauthorized Honda Marine dealer,or refer to the shop manual.

Remove and inspect spark plugs. Clean, gap or replace spark plugs(p. ).

Dry and reinstall spark plugs. Startengine with choke and throttle open.

Drain fuel tank and carburetors (p.). Refill with fresh gasoline (p.).

3.

4.

5.

24

33

73

65

63

61

65

02/03/25 21:05:02 31ZW8A00_081

81


CorrectionPossible CauseHARD STARTING OR STALLSAFTER STARTING

Check control positions. Choke OPEN (tiller-handle type). Pull choke knob to CLOSEDposition, unless engine is warm (p.

).

Turn throttle grip to START (p.).

Leave fast idle lever OFF, unlessengine is warm (p. ).

Throttle grip not in STARTposition (tiller-handle type).

Fast idle lever raised (side-mounttype).

Fuel vent closed (portable fueltank).

Fuel hose not primed.Fuel pump filter or fuel tankclogged.

Bad fuel; boat stored withouttreating or draining gasoline, orrefueled with bad fuel.

Open fuel tank vent (p. ).

Squeeze priming bulb (p. ).Replace fuel filters (p. ).

Drain fuel tank and carburetors (p.). Refill with fresh gasoline (p.).

Check fuel.

1.

2.

14

36

39

24

33

7363

65

02/03/25 21:05:19 31ZW8A00_082

82


HARD STARTING OR STALLSAFTER STARTING

(continued)


Faulty thermostat or water pump. Replace or repair faultycomponents as necessary.

Check water intake screens. Water intake screens clogged. Clean water intake screens.

ENGINE OVERHEATS Possible Cause Correction

Carburetor malfunction, fuel pumpfailure, ignition malfunction, etc.



Spark plugs faulty, fouled orimproperly gapped.

Clean, gap or replace spark plugs(p. ).

Remove and inspect spark plugs.

Possible Cause Correction

2.

3.

4.

1.

61

02/03/25 21:05:34 31ZW8A00_083

20A

83

BATTERY WILL NOTCHARGE AND ELECTRICSTARTER WILL NOTOPERATE


FUSE CASE LID20A FUSE

BLOWN FUSE

SPARE 20A FUSE

Never use a f use with a ratinggreater than specif ied. Seriousdamage to the electrical systemcould result.

The battery-charging circuit and theelectric starter relay circuit areprotected by the 20-ampere fuse. Ifthe fuse burns out, the engine willnot charge the battery, and theelectric starter will not operate. Theengine can be started using the recoilstarter or the emergency starter rope.

The ignition switch is protected bythe 20-ampere fuse. If the fuse burnsout, the engine will not start or run.

Fuse Replacement

With the engine stopped, removethe engine cover.

Remove the fuse case lid.

Remove and inspect the fuses. If afuse is burnt out, install areplacement fuse of the specifiedrating. The outboard motor issupplied with spare fuses in thefuse holders.

DESIGNATED FUSE:

Before further operation, try todetermine and correct the electricalproblem that caused the fuse toburn out. An uncorrected electricalproblem may cause the fuse toburn out again.

Reinstall the fuse case lid and theengine cover.

1.

2.

3.

4.

02/03/25 21:05:48 31ZW8A00_084

84

OIL PRESSURE INDICATORLIGHT GOES OFF ANDENGINE SPEED IS LIMITED


(tiller handle type)

(GREEN)OIL PRESSURE(GREEN)

(remote control type)

If oil pressure becomes low, thegreen indicator light will go off, andthe engine protection system willlimit engine speed. If you are atcruising speed, engine speed willdecrease gradually.

Remote-control types are equippedwith a buzzer that sounds when thegreen indicator light goes off.

Low oil pressure may be the result ofa low engine oil level, or there maybe a problem with the enginelubrication system.

If the throttle is closed suddenly afterfull throttle operation, engine speedmay drop below the specified idlerpm, and that could activate theengine protection systemmomentarily.

If low oil pressure activates theengine protection system, stop theengine, check the engine oil level(p. ), and add oil if needed.

With the engine oil at therecommended level, restart theengine. If the lubrication system isOK, the green indicator light shouldcome on within 30 seconds, and theengine will respond normally tothrottle grip or control leveroperation.

If the engine protection systemremains activated after 30 seconds,return to the nearest boat landing,and have the outboard motorinspected by an authorized Hondamarine dealer.

56

02/03/25 21:05:58 31ZW8A00_085

85

OVERHEATING INDICATORLIGHT COMES ON ANDENGINE SPEED IS LIMITED


(RED)

COOLING SYSTEM INDICATOR

If the engine overheats, the redindicator light will come on, and theengine protection system will limitengine speed. If you are at cruisingspeed, engine speed will decreasegradually.

Remote-control types are equippedwith a buzzer that sounds when thered indicator light comes on.

Engine overheating may be the resultof clogged water intake screens, orthere may be a problem with thecooling system thermostat or waterpump.

If the engine is stopped after runningat full throttle, and then restartedsoon afterward, that could activatethe engine protection systemmomentarily.

If overheating activates the engineprotection system, idle the engine inneutral, and check the cooling systemindicator.

If water is flowing from the coolingsystem indicator, continue idling for30 seconds. If the cooling system isOK, the red indicator light should gooff within 30 seconds, and the enginewill respond normally to throttle gripor control lever operation.

If there is no water flowing fromthe cooling system indicator, stopthe engine, and tilt the outboardmotor to inspect the water intakescreens. If clogged, clean the waterintake screens, return the outboardmotor to the running position,restart the engine, and check thecooling system indicator again.

If there is still no water flowingfrom the cooling system indicator,or if the engine protection systemremains activated after 30 seconds,return to the nearest boat landing,and have the outboard motorinspected by an authorized Hondamarine dealer.

02/03/25 21:06:10 31ZW8A00_086

－

86

SUBMERGED MOTOR


STARTER GRIP

A submerged outboard motor mustbe serviced immediately after it isrecovered from the water in order tominimize corrosion.

If the engine was running when itsubmerged, there may bemechanical damage, such as bentconnecting rods. If the enginebinds when cranked, do notattempt to run the engine until ithas been repaired.

Change the engine oil and oil filteras described on p. . Ifthere was water in the enginecrankcase, or if the used engine oilshowed signs of watercontamination, then a secondengine oil change should beperformed after running the enginefor half an hour.

Drain the carburetors as describedon p. .

Remove the engine cover, andrinse the outboard motor withfresh water to remove salt water,sand, mud, etc.

If there is a Honda marine dearshipnearby, take the motor to the dealerimmediately. If you are far from adealership, proceed as follows:

Remove the spark plugs (p. ),and remove the clip from theemergency stop or engine switch.Pull the recoil starter grip, rotatethe flywheel a few revolutions tocompletely expel any water fromthe cylinders.

1.

2.

3.

4.

73

57 58

61

02/03/25 21:06:19 31ZW8A00_087

87


When cranking the engine withan open ignition circuit (sparkplugs removed f rom the ignitioncircuit), remove the clip f romthe emergency or engine stopswitch to prevent possibledamage to the ignition system.

Attempt to start the engine.

If the engine fails to start, removethe spark plugs, clean and drythem, then reinstall the spark plugsand attempt to start the engineagain.

As soon as possible, take theoutboard motor to an authorizedHonda Marine dealer forinspection and service.

If the engine starts, and nomechanical damage is evident,continue to run the engine for ahalf hour or longer. Be sure thewater level is at least two inchesabove the antiventilation plate toavoid overheating and water pumpdamage.

Pour a teaspoon of engine oil intoeach spark plug hole, then pull therecoil starter grip several times tolubricate the inside of the cylinders.

Reinstall the spark plugs, and putthe emergency stop switch clipinto the switch.

5.

6.

7.

8.

02/03/25 21:06:29 31ZW8A00_088

88

TECHNICAL INFORMATION

Serial Number Locations

TECHNICAL AND CONSUMER INFORMATION

SWIVEL CASE

PRODUCT IDENTIFICATIONNUMBER ENGINE SERIAL NUMBER

Record the product identificationnumber and engine serial numbers inthe space provided on this page. Youwill need these numbers whenordering parts, and when makingtechnical or warranty inquiries (p.

).

The product identification number isstamped on a plate attached on top ofthe stern bracket.

Product identification number: Engine serial number:

The engine serial number isstamped on the right front of theengine.

97

02/03/25 21:06:38 31ZW8A00_089

12V-35AH

89

Carburetor Modification forHigh Altitude Operation

Battery

Minimum Requirements


When the carburetors have beenmodif ied f or high altitude operation,the air-f uel mixture will be too leanf or low altitude use. Operation ataltitudes below 5,000 f eet (1,500meters) with modif ied carburetorsmay cause the engine to overheatand result in serious engine damage.For use at low altitudes, have anauthorized Honda Marine dealerreturn the carburetors to originalf actory specif ications.

At high altitude, the standardcarburetor air-fuel mixture will betoo rich. Performance will decrease,and fuel consumption will increase.A very rich mixture will also foul thespark plugs and cause hard starting.

High altitude performance can beimproved by specific modificationsto the carburetors. If you alwaysoperate your outboard motor ataltitudes above 5,000 feet (1,500meters), have an authorized Hondamarine dealer perform this carburetormodification.

Even with carburetor modification,engine horsepower will decreaseabout 3.5% for each 1,000-foot (300-meter) increase in altitude. The effectof altitude on horsepower will begreater than this if no carburetormodification is made.

For complete information, refer tothe battery manufacture’sinstructions.

02/03/25 21:06:48 31ZW8A00_090

90

Oxygenated Fuels

ETHANOL:

MTBE:

METHANOL:


Some conventional gasolines arebeing blended with alcohol or anether compound. These gasolines arecollectively referred to as oxygenatedfuels. To meet clean air standards,some areas of the United States andCanada use oxygenated fuels to helpreduce emissions.

If you use an oxygenated fuel, besure it is unleaded and meets theminimum octane rating requirement.

Before using an oxygenated fuel, tryto confirm the fuel’s contents. Somestates/provinces require thisinformation to be posted on the pump.

The following are the EPA-approvedpercentages of oxygenates:

ethyl or grain alcohol;10% by volume.

You may use gasoline containing upto 10% ethanol by volume. Gasolinecontaining ethanol may be marketedunder the name ‘‘Gasohol’’.

Methyl Tertiary Butyl Ether;15% by volume.

You may use gasoline containing upto 15% MTBE by volume.

methyl or woodalcohol; 5% by volume.

You may use gasoline containing upto 5% methanol by volume, as longas it also contains cosolvents andcorrosion inhibitors to protect thefuel system. Gasoline containingmore than 5% methanol by volumemay cause starting and/orperformance problems. It may also

damage metal, rubber, and plasticparts of your fuel system.

If you notice any undesirableoperating symptoms, try anotherservice station, or switch to anotherbrand of gasoline.

Fuel system damage or performanceproblems resulting from the use of anoxygenated fuel containing morethan the percentages of oxygenatesmentioned above are not coveredunder warranty.

02/03/25 21:06:59 31ZW8A00_091

91

Emission Control SystemInformation


Source of Emissions

The U.S. Clean Air Act Tampering and Altering

The combustion process producescarbon monoxide, oxides of nitrogen,and hydrocarbons. Control ofhydrocarbons and oxides of nitrogenis very important because, undercertain conditions, they react to formphotochemical smog when subjectedto sunlight. Carbon monoxide doesnot react in the same way, but it istoxic.

Honda utilizes lean carburetorsettings and other systems to reducethe emissions of carbon monoxide,oxides of nitrogen, and hydrocarbons.

EPA regulations require allmanufacturers to furnish writteninstructions describing the operationand maintenance of emission controlsystems.

The following instructions andprocedures must be followed in orderto keep the emissions from yourHonda engine within the emissionstandards.

Tampering with or altering theemission control system may increaseemissions beyond the legal limit.Among those acts that constitutetampering are:

Removal or alteration of any partof the intake, fuel, or exhaustsystems.

Alterations that would cause theengine to operate outside its designparameters.

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92


Maintenance

Replacement PartsProblems That May Af f ectEmissions

A manufacturer of an aftermarketpart assumes the responsibility thatthe part will not adversely affectemission performance. Themanufacturer or rebuilder of the partmust certify that use of the part willnot result in a failure of the engine tocomply with emission regulations.

Follow the maintenance schedule onp. . Remember that this scheduleis based on the assumption that yourmachine will be used for its designedpurpose. Sustained high-loadoperation, or use in unusualconditions, will require morefrequent service.

The emission control systems onyour Honda engine were designed,built, and certified to conform withEPA emission regulations. Werecommend the use of genuineHonda parts whenever you havemaintenance done. These original-design replacement parts aremanufactured to the same standardsas the original parts, so you can beconfident of their performance. Theuse of replacement parts that are notof the original design and qualitymay impair the effectiveness of youremission control system.

If you are aware of any of thefollowing symptoms, have yourengine inspected and repaired byyour servicing dealer.

Hard starting or stalling afterstarting.

Rough idle.

Misfiring or backfiring under load.

Afterburning (backfiring).

Black exhaust smoke or high fuelconsumption.

54

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93

Star Label

The Symbol for Cleaner Marine Engines:

Cleaner Air and Water -

Better Fuel Economy -

Longer Emission Warranty -


The Star Label means Cleaner Marine Engine

A Star label was applied to thisoutboard motor in accordance withthe requirements of the CaliforniaAir Resources Board.

for healthier lifestyle and environment.

burns up to 30 - 40 percent less gas and oil thanconventional carbureted two-stroke engines, saving money and resources.

protects consumer for worry free operation.

This engine has been certified as a:

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94

One StarLow Emission

Two StarsVery Low Emission

Three StarsUltra Low Emission


The one-star label identifies enginesthat meet the Air Resources Board’s2001 exhaust emission standards.Engines meeting these standardshave 75% lower emissions thanconventional carbureted two-strokeengines. These engines are equivalentto the U.S. EPA’s 2006 standards formarine engines.

The two-star label identifies enginesthat meet the Air Resources Board’s2004 exhaust emission standards.Engines meeting these standardshave 20% lower emissions than OneStar-Low-Emission engines.

The three-star label identifies enginesthat meet the Air Resources Board’s2008 exhaust emission standards.Engines meeting these standardshave 65% lower emissions than OneStar-Low-Emission engines.

Cleaner Watercraft - Get the Facts1-800-END-SMOG

www.arb.ca.gov

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±

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±±

BF8D/BFP8DBAAJ

H HS R

13.6 in (345 mm)43.5 in (1,105 mm)

17.0 in (433 mm)

27.7 in (703 mm)22.2 in (563 mm)

92.6 lbs(42.0 kg)

117.9 lbs(53.5 kg)

4,500 5,500 rpm4 stroke OHC in-line 2 cylinder, water-cooled

13.5 cu-in (222 cm )0.031 0.035 in (0.80 0.90 mm)

Recoil starter Electric starterC.D.I

Trochoid pump pressure lubrication

48.6 in (1,235 mm)54.1 in (1,375 mm)

12V 12AWater cooling with thermostat

Water exhaust

Diaphragm type fuel pump

3.2 US gal (12 , 2.6 Imp gal)Forward-Neutral-Reverse

(dog type)45° right and left

5 stages (4°-8°-12°-16°-20°)3 stages adjustment (30°, 45° and 71°)

API standard (SG, SH, SJ)SAE 10W-30

Motor-mounted

98.1 lbs(44.5 kg)

103.6 lbs(47.0 kg)

106.9 lbs(48.5 kg)

109.1 lbs(49.5 kg)

6.0 kW (8.0 HP)

API standard (GL-4/5)SAE 90 outboard motor gear oil

12V 12A12V 6A

U16FER9 (DENSO)CR5EH-9 (NGK)

See page 62

See shopmanual

See shopmanual

900 50 rpm

0.031 0.035 in(0.80 0.90 mm)

24.0 in (610 mm)ULTRA · LOW EMISSION

1.4 US qt (1.3 , 1.1 Imp qt)0.301 US qt (0.285 , 0.251 Imp qt)

Automotive unleaded gasoline(86 pump octane or higher)

No other adjustment is needed

0.17 0.02 mm0.23 0.02 mm

102.5 lbs(46.5 kg)108.0 lbs(49.0 kg)116.8 lbs(53.0 kg)

Gear case:

Engine:

SLXSLXS

L

X

Engine:Gear case:

Exhaust:Intake:

,

23.6 in (600 mm)

95

Specifications


Tune Up

MODELDescription CodeTypeOverall lengthOverall widthOverall height

Transom height

Weight

Rated powerFull throttle rangeEngine typeDisplacementSpark plug gapStarter systemIgnition systemLubrication systemSpecified oil

D.C. outputCooling systemExhaust systemSpark plugsFuel pumpFuel

Tank capacityGear change

Steering angleTransom angleTilt angleRemote controlsteering system

Spark plug gap

Valve clearance(cold)

Idle speed

CARB star label

Oil capacity

Other specifications

Honda outboards are power rated in accordance with NMMA procedures and using the ICOMIA standard 28/23.

02/03/25 21:08:37 31ZW8A00_096

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±

－－

±±

13.6 in (345 mm)

BF9.9D/BFP9.9DBABJ

H HS R

43.5 in (1,105 mm)48.6 in (1,235 mm)54.1 in (1,375 mm)17.0 in (433 mm)22.2 in (563 mm)27.7 in (703 mm)

5,000 6,000 rpm4 stroke OHC in-line 2 cylinder, water-cooled

13.5 cu-in (222 cm )0.031 0.035 in (0.80 0.90 mm)

Recoil starter Electric starter

Trochoid pump pressure lubricationC.D.I

API standard (SG, SH, SJ)SAE 10W-30

12V 12AWater cooling with thermostat

Water exhaust

Diaphragm type fuel pump

3.2 US gal (12 , 2.6 Imp gal)Forward-Neutral-Reverse

(dog type)45° right and left

5 stages (4°-8°-12°-16°-20°)3 stages adjustment (30°, 45° and 71°)

Motor-mounted7.4 kW (9.9 HP)

API standard (GL-4/5)SAE 90 outboard motor gear oil

12V 12A12V 6A

900 50 rpm

0.031 0.035 in(0.80 0.90 mm)

CR5EH-9 (NGK) U16FER9 (DENSO)


108.0 lbs(49.0 kg)116.8 lbs(53.0 kg)

102.5 lbs(46.5 kg)


24.0 in (610 mm)

1.4 US qt (1.3 , 1.1 Imp qt)0.301 US qt (0.285 , 0.251 Imp qt)

ULTRA · LOW EMISSION

Automotive unleaded gasoline(86 pump octane or higher)

See page 62

See shopmanual

See shopmanual

No other adjustment is needed

0.17 0.02 mm0.23 0.02 mm

Gear case:

Engine:

SLXSLXS

L

X

Engine:Gear case:

Exhaust:Intake:

,

23.6 in (600 mm)

96

Specifications


Tune Up

MODELDescription CodeTypeOverall lengthOverall widthOverall height

Transom height

Weight

Rated powerFull throttle rangeEngine typeDisplacementSpark plug gapStarter systemIgnition systemLubrication systemSpecified oil

D.C. outputCooling systemExhaust systemSpark plugsFuel pumpFuel

Tank capacityGear change

Steering angleTransom angleTilt angleRemote controlsteering system

Spark plug gap

Valve clearance(cold)

Idle speed

CARB star label

Oil capacity

Other specifications

Honda outboards are power rated in accordance with NMMA procedures and using the ICOMIA standard 28/23.

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97

Warranty Service InformationCONSUMER INFORMATION

Honda Publications

American Honda Motor Co., Inc.


Shop Manual

Parts Catalog

Honda Marine dealership personnelare trained professionals. Theyshould be able to answer anyquestion you may have. If youencounter a problem that your dealerdoes not solve to your satisfaction,please discuss it with the dealership’smanagement. The Service Manageror General Manager can help. Almostall problems are solved in this way.

If you are dissatisfied with thedecision made by the dealership’smanagement, contact the HondaMarine Customer Relations Office.You can write:

Marine DivisionCustomer Relations Office4900 Marconi DriveAlpharetta, Georgia 30005-8847

Or telephone: (770) 497-6400

When you write or call, please giveus this information:

Model and serial numbers (p. )

Name of the dealer who sold theoutboard motor to you

Name and address of the dealerwho services your outboard motor

Date of purchase

Your name, address, and telephonenumber

A detailed description of theproblem

These publications will give youadditional information formaintaining and repairing youroutboard motor. You may order themfrom your Honda marine dealer.

This manual covers completemaintenance and overhaul procedures.It is intended to be used by a skilledtechnician.

This manual provides complete,illustrated parts lists.

88

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101

INDEX

...........................................................................Anodes . 23..............................................................Replacement . 69

.........ARE YOU READY TO GET UNDER WAY . 30...........................................................ATTACHMENT . 26

........................Automatic Choke (equipped type only) . 23

...........................................................................Battery . 89.......................................BATTERY CONNECTIONS . 27

BATTERY WILL NOT CHARGE ANDELECTRIC STARTER WILL NOT

.............................................................OPERATE . 83................................................BEFORE OPERATION . 30

.......................BOAT TRANSOM REQUIREMENTS . 25...........................................BREAK-IN PROCEDURE . 32

Carburetor Modification for High Altitude...................................................................Operation . 89

...................................................Cleaning and Flushing . 71............................Choke Knob (H type manual choke) . 14

........COMPONENT AND CONTROL LOCATIONS . 11...................................CONSUMER INFORMATION . 97

..................................................................CONTROLS . 14CONTROLS AND FEATURE IDENTIFICATION

......................................................................CODES . 10..................................CONTROLS AND FEATURES . 10

..............................................Cooling System Indicator . 23....................................................................CRUISING . 48

Electric Starter Button (models equipped with...........................................................electric starter) . 16

.........................................EMERGENCY STARTING . 40.........................Emission Control System Information . 91

EngineCover

......................................................................Latch . 20...................REMOVAL AND INSTALLATION . 56

Oil...................................................................Change . 57

..........................................................Level Check . 56.................................................Recommendations . 59

....................................Stop Switch and Switch Clip . 14

Fuel..........................................................Cap Vent Knob . 24

...........................................HOSE CONNECTIONS . 34.........................................................................Gauge . 21

..................................................................PRIMING . 35.............................................................Priming Bulb . 24

..........................................RECOMMENDATIONS . 64.................Pump Filter Inspection and Replacement . 65

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102

INDEX

..GEARSHIFTING AND THROTTLE OPERATION . 45................................................H Type (tiller handle) . 45

............................................R Type (remote control) . 46..............................................................Gearshift Lever . 15

....................................Gearshift/Trottle Control Lever . 18

..............................................................Ignition Switch . 16....................IMPORTANT SAFETY INFORMATION . 7

...............................................................INDICATORS . 22..........................................................INSTALLATION . 25

......................................INSTALLATION POSITION . 26...........................................................INSTRUMENTS . 21

IS YOUR OUTBOARD MOTOR....................................................READY TO GO . 30

.........................................................Lubrication Points . 60

.........................................MAINTENANCE SAFETY . 52...................................MAINTENANCE SCHEDULE . 54

...................MOORING, BEACHING, LAUNCHING . 50

............................................................Oil filter Change . 58.......................Oil Pressure Indicator (R type) (H type) . 22

OIL PRESSURE INDICATOR LIGHT GOES..............OFF AND ENGINE SPEED IS LIMITED . 84

................................................................OPERATION . 32....................................................OTHER FEATURES . 23

...................................OUTBOARD MOTOR SAFETY . 7.....................................Overheating Indicator (R type) . 22

OVERHEATING INDICATOR LIGHT COMESON AND ENGINE SPEED IS LIMITED

.............................................(remote control type) . 85.............................................................Overrev Limiter . 23

..........................................................Oxygenated Fuels . 90

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103

INDEX

.....................................PORTABLE FUEL TANK . 24, 34........................Portable Fuel Tank and Filter Cleaning . 68

.........................................POWER REQUIREMENTS . 25..................................................Propeller Replacement . 70

Recoil Starter............................................................................Grip . 16

.........................................................Rope Inspection . 69.................................................................REFUELING . 65

...................................REMOVAL FROM STORAGE . 76

........................SAFE OPERATING PRECAUTIONS . 32....................................SAFETY LABEL LOCATIONS . 9

...............................................Serial Number Locations . 88..............SERVICING YOUR OUTBOARD MOTOR . 51

............................SHALLOW WATER OPERATION . 49........................................................Spark Plug Service . 61

................................................................Specifications . 95......................................................................Star Label . 93

..........................................STARTING THE ENGINE . 35................................................H Type (tiller handle) . 35

............................................R Type (remote control) . 38....................................................................STEERING . 47

................................................H Type (tiller handle) . 47............................................R Type (remote control) . 47

..................................................Steering Friction Lever . 21...........................................STOPPING THE ENGINE . 43

.....................................Emergency Engine Stopping . 43...........................................Normal Engine Stopping . 43

....................................................................STORAGE . 71........................................STORAGE PRECAUTIONS . 75........................................STORAGE PREPARATION . 71

............................................................................Fuel . 73..................................................................Engine oil . 75

...............................................SUBMERGED MOTOR . 86.....................Switch Clip and Emergency Stop Switch . 17

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104

INDEX

....TAKING CARE OF UNEXPECTED PROBLEMS . 78..TECHNICAL AND CONSUMER INFORMATION . 88

...................................TECHNICAL INFORMATION . 88...............THE IMPORTANCE OF MAINTENANCE . 51

....................................................Throttle Friction Dial . 15..................................................................Throttle Grip . 15

.......................................................................Tilt Lever . 21..TOOL KIT AND EMERGENCY STARTER ROPE . 53

.....................................Transom Angle Adjusting Rod . 20....................TRANSOM ANGLE ADJUSTMENT . 27,33

........................................................TRANSPORTING . 77WITH OUTBOARD MOTOR INSTALLED

.............................................................ON BOAT . 77WITH OUTBOARD MOTOR REMOVED

.......................................................FROM BOAT . 77

..................................................WIRING DIAGRAMS . 98

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