6. Make sure that the spark plug washer Is in good condition, and thread
the spark plug in by hand to prevent cross-threading.
7.
After the spark plug is seeted,
tighten
with
a
spark plug wrench to com-
press the washer.
NOTE: If installing a new spark plug, tighten 112 turn after the spark plug
seats to compress the washer. If reinstalling a used spark plug, tighten
l/8-
l/4 turn after the spark plug seat8 to compress the washer.
CAUTION:
l
The spark plug murt a
securely
tIghtened.
An impropedy
tightened
aperk plug can become vorv hut and coukl damage the engine.
l
Never use spark plugs which have an hquroper heat range. Use +y
the
mcommmded
spark plug8 01 oquhfabnt.
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