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26
SERVICE AND MAINTENANCE
Spark Plug Service
WARNING
DO NOT check for spark with spark plug removed. DO NOT crank engine with
spark plug removed.
To ensure proper engine operation, the spark plug must be properly gapped and
free of deposits.
1. Remove the spark plug boot and use a spark plug wrench to remove the
plug. See Figure 35.
WARNING
If the engine has been running, the muffler will be very hot. Be careful not
to touch the muffler.
Spark Plug
Spark Plug Boot
Figure 35
2. Visually inspect the spark plug. Discard the spark plug if there is apparent
wear, or if the insulator is cracked or chipped. Clean the spark plug with a
wire brush if it is to be reused.
3. Measure the plug gap with a feeler gauge. Correct as necessary by
bending side electrode. See Figure 36. The gap should be set to between
0.024-0.031 in.
Electrode
0.024-0.031 in.
Figure 36
6. Attach the new air filter with foam element, aligning the hole in the air filter
with the intake manifold. See Figure 33. Secure with thumb screw.
Intake Manifold
Figure 33
7. Attach the air filter cover, making sure to align plastic rib features on the
shroud to the plastic features on the air filter cover. See Figure 34. Turn
thumb screws clockwise until snug. Check for any misalignment.
Plastic Rib
Feature
Shroud
Plastic
Feature
Air Filter
Cover
Figure 34
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