e) To avoid cross-threading, first, screw in spark plug by hand,
then tighten with a spark plug wrench to compress the gasket.
f) If a new spark plug is used, more twist 1/2 turns after
compressing the gasket.
g) If reinstalling the used spark plug, just more twist 1/8-1/4 turns.
Spark plug torque value：18±2N·m
Spark Plug Type：F7TC
The spark plug must be tightened securely, or it may become very hot to damage the
engine. Only use recommended spark plug or the equivalent. Incorrect heat range of
the spark plug may damage the engine.
3-6 Valve Clearance Adjustment
Measure the valve clearance in the cold of the engine state.
SPARK PLUG
SPARK PLUG CAP
a) Remove the bolt（M6×14）, cylinder head cover, gasket, spark plug cap and spark plug.
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