4. Thread the plug in by hand to prevent cross-threading.
5. Tighten a new spark
If you are reusing a
seats.
plug l/2 turn with the wrench to compress the washer.
plug, it should only take l/8-1/4 turn after the plug
CAUTION: The spark plug must be securely tightened. An improperly
tightened plug can become very hot and damage the engine. Spark plugs
which have an improper heat range may cause engine damage.
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