8,Thread the plugs in by hand to prevent cross threading.
7. After the spark plugs are seated, tighten with a spark plug wrench to
compress the washers.
NOTE:
If installing new spark plugs, tighten l/2 turn after the spark plugs seat
to compress the washers. If reinstalling used spark plugs, tighten l/8-
1/4 turn after the spark plugs seat to compress the washers.
piiieq
l The spark plugs must be securely tightened. Improperly tightened
plugs can become very hot and may cause engine damage.
l Use only the recommended spark plugs or equivalent. Spark plugs
which have an improper heat range may cause engine damage.
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