MAINTENANCE
5. Check that the spark plug
washer is in good condition,
and thread the spark plug in by
hand to prevent
cross-threading.
6. After the spark plug is seated,
tighten with a spark plug
wrench to compress the
washer.
If installing a new spark plug,
tighten l/2 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 seats to compress the’washer.
piEq
A loose spark plug can overheat and damage the engine.
Over-tightening the spark plug can damage the threads in the
cylinder head.
7. Reconnect the spark plug cap.
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