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Servicing Your Honda
143
Spark Plugs
13.
With the plug washer attached, thread the spark plug in by hand
to prevent cross-threading.
14.
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:
a) First, tighten the plug:
1/2 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, the piston may be damaged. If a plug is too tight,
the threads may be damaged.
15.
Reinstall the top spark plug cap and side spark plug cap. Take
care to avoid pinching any cables or wires.
16.
Install the remaining parts in the reverse order of removal.
21YM TRX680FA5_31HS2610.book 143 ページ ２０２１年３月８日 月曜日 午前９時４６分
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