Honda FourTrax Rincon TRX680FA5 2018, Owner'S Manual

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Servicing Your Honda 141
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:
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.
1/2 turn after it seats.
19 TRX680FA (U)-32HN8A400.book Page 141 Thursday, June 14, 2018 1:25 PM