MAINTENANCE
Spark Plug
Spark Plug Inspection and Replacement
3.Clean any dirt from around the base of the spark plug.
4.Using the provided park plug wrench (B), remove the spark plug.
5.Inspect the electrode for wear and carbon buildup. Look for a sharp outer edge with no rounding or erosion of the electrode.
Inspect electrode for wear and buildup
6.Inspect spark plug. Replace if electrodes are worn or if insulator is cracked, chipped, or fouled.
7.Clean the spark plug with a wire brush if it is to be reused.
8.Using a wire-type feeler gauge,
measure the spark plug electrode gap. If necessary, correct the gap by carefully
bending the side electrode. TheSpark plug gap gap should be
9.Ensure the spark plug sealing washer is in good condition and thread the spark plug in by hand to prevent
10.After a new spark plug has been seated by hand, it should be tightened 1/2 turn with a wrench to compress the sealing washer. If a used plug is being reinstalled, it should only require 1/8 to 1/4 turn after being seated.
A loose spark plug can overheat and damage the engine. Over tightening the spark plug can damage the plug threads.
Never use a spark plug with an improper heat range.
11.
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