User's Manual

SPARK PLUG SERVICE
Recommended spark plugs:
BPRGES (NGK)
WZOEPR-U (NIPPONDENSO)
To ensure proper engine operation, the spark plugs must be properly
gapped and free of deposits.
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If the engine has been running, the exhaust pipe and muffler will be
very hot. Be careful to avoid touching the exhaust pipe or muffler.
1.
2.
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5.
Remove the spark plug caps.
Clean any dirt from around the spark plug bases.
Use a plug wrench to remove the spark plugs.
PLUG WRENCH
Visually inspect the spark plugs. Discard them if the insulator is
cracked or chipped. Clean the spark plugs with a wire brush if they
are to be reused.
Measure the spark plug electrode gap with a suitable gauge. The
gap should be 0.028-0.031 in (0.70-0.80 mm). Correct the gap,
if necessary, by carefully bending the side electrode.
0.028-0.031 in
(0.70-0.80 mm)
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