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Spark Plug u Changing Spark Plug
59
Maintenance
6.
Install the new spark plug.
With the plug washer attached, thread
the spark plug in by hand to prevent
cross-threading.
7.
Tighten the spark plug:
●
If the old plug is good:
1/8 turn after it seats.
●
If installing a new plug, tighten it twice
to prevent loosening:
8.
Reinstall the spark plug cap. Take care to
avoid pinching any cables or wires.
9.
Install the parts in the reverse order of
removal.
a) First, tighten the plug:
NGK: 1 turn after it seats.
b)Then loosen the plug.
c) Next, tighten the plug again:
1/8 turn after it seats.
NOTICE
An improperly tightened spark plug can damage the
engine. If a plug is too loose, a piston may be damaged.
If a plug is too tight, the threads may be damaged.
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