Honda TRX680FA2011 Owner's Manual page 146

Spark Plug Inspection & Replacement
Refer to
Saf ety Precautions
1. Remove the seat (page
2. Loosen the screw ( ) and remove the resonance chamber ( ).
3. Unhook the rubber cover ( ).
4. Clean any dirt from around the spark plug base.
5. Disconnect the spark plug cap ( ). Take care to avoid damaging the
spark plug wire when disconnecting the cap.
6. Using a spark plug wrench provided in the tool kit, remove the spark
plug.
7. Inspect the electrodes and center porcelain for deposits, corrosion, or
carbon fouling. If the corrosion or deposits are heavy, replace the
plug.
UNDER SEAT
(1)
(2)
(1) screw
(2) resonance chamber
8. Make sure that a 1.2 mm wire-type feeler gauge cannot be inserted
between the spark plug gap (
the plug with a new one.
on page
110 ).
1
3
4
(3)
5 ). If the gauge fits in the gap, replace
Spark Plug
99 .
(3) rubber cover
(4) spark plug cap
Servicing Your Honda
2
(4)
(cont'd)
139