2-8 PERIODIC MAINTENANCE
• Check the spark plug gap
A with a thickness gauge.
" 09900-20803: Thickness gauge
# Spark plug gap: 0.9 – 1.0 mm (0.035 – 0.039 in)
# Standard Spark plug
• Tighten the spark plug with specified tightening torque after
tightening the spark plug temporarily with fingers.
" 09930-10121: Spark plug wrench set
$ Spark plug: 11 N·m (1.1 kgf-m, 8.0 lb-ft)
• Install the ignition coil/spark plug cap securely.
• Connect the lead wire coupler.
NGK CR8EIA-10
CAUTION
Changing the spark plug heat range improperly can
damage the engine.
Select the spark plug heat range only after adjusting
the carburetor setting.
CAUTION
Do not hit the ignition coil/plug cap with a plastic ham-
mer when installing it.
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