Warranty

4. ,Check that the spark plug washer is in good condition and thread the
5. ;After the spark plug is seated, tighten with a spark plug wrench to com-
!spark plug
in by hand to prevent cross-threading.
;press the washer.
NOTE: When installing a new spark plug, tighten 1/2 turn after the spark
plug seats to compress the washer. When reinstalling a used spark plug,
tighten 1/8- 1/4 turn after the spark plug seats to compress the washer.
The spark plug must be securely tightened. An improperly
tightened spark plug
can become very hot and may damage the engine.
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