Honda WJR4025 Owner's Manual page 61

4MYH3M010.book 59 ページ ２０１６年６月２９日 水曜日 午前１１時１分
2. Remove the spark plug cap. Remove any dirt from around the spark
plug area.
3. Use the 16×17 mm box wrench to remove the spark plug.
If the engine has been running, the muffler will be very hot. Be careful
not to touch the muffler.
4. Visually inspect the spark plug. Discard the spark plug if there is
apparent wear, or if the insulator is cracked or chipped.
Clean the spark plug with a wire brush if it is to be reused.
5. Measure the plug gap with a feeler gauge. Correct as necessary by
bending the side electrode.
The gap should be:
0.6–0.7 mm
SIDE ELECTRODE
SEALING WASHER
6. Check that the sealing washer is in good condition, and thread the
spark plug in by hand to prevent cross-threading.
SPARK PLUG
SPARK PLUG CAP
0.6–0.7 mm
INSULATOR
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