Today

Spark PlugAir Cleaner

Internal Combustion

Engine Review

What Does A Spark Plug Do?

Transfers the charge from the IGNITION COIL to the Cylinder Head

Which Causes?

What is a Spark Plug Gap?

The gap allows the electrical charge to jump across causing a spark

Narrow Gap:

Risk: Spark might be too week to ignite AFMBenefit: Plug always fires on each cycle

Wide Gap:

Risk: Plug may not fire OR miss at high speedBenefit: Plug is strong for clean burn

Gapping a Spark Plug

Gapping a Spark Plug

First: The appropriate gap needs to be Determined.

Refer to the Manual for Specs

Gapping a Spark Plug

Second: Select the appropriate Gapping Gauge

Slide Gauge into gap and adjust the gap prong

Gapping a Spark Plug

Reinstall the spark Plug into Cylinder Head

DO NOT OVER TIGHTEN!!!!!!

What Does TheAir Filter Do?

Air Cleaners or Air Filters

Clean the air that enters the cylinder

Hazards of an OLD or CLOGGED Air Filter

Fails to remove contaminants Starves the AFM of proper amounts of air

Assignment