Spark Plug Service - Honda ES6500 Owner's Manual

SPARK PLUG SERVICE
In order to service the spark plug, you will need a spark plug wrench
(commercially available).
Recommended spark plug:
BPRGHS (NGK)
To ensure proper engine operation, the spark plug must be properly
gapped and free of deposits.
1. Pull the lock levers out and open the top cover.
2. Remove the spark plug cap.
3. Use a spark plug wrench to remove the spark plug.
4.Visually inspect the spark plug. Discard it if the insulator is cracked
or chipped.
5. Measure the plug gap with a feeler gauge.
Correct as necessary by carefully bending the side electrode.
The gap should be:
0.60-0.70 mm (0.024-0.028 in)
6. Attach the plug washer. Thread the plug in by hand to prevent cross-
threading.
7.Tighten a new spark plug l/2 turn with the wrench to compress the
washer. If you are reusing a plug, it should only take l/8-1/4 turn
after the plug seats.
8. Reinstall the top cover.
psiEi-1
The spark plug must be securely tightened. An improperly tightened
spark plug can become very hot and could damage the engine.
Never use spark plugs which have an improper heat range. Use only
the recommended spark plugs or equivalent.
PLUG WRENCH
PLUG GAP
0.6-0.7 mm
(0.024-0.028 in)
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