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Spark Plug Service
For good performance, the spark plug must be properly gapped and free of deposits.
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Disconnect the spark plug cap and remove any dirt from around the spark plug area.
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Remove the spark plug with a spark plug wrench
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Inspect the spark plug. Replace it if the electrodes are worn, or if the insulator is cracked or chipped.
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Measure the spark plug electrode gap with a suitable gauge. The gap should be 0.028 ~ 0.031 inches
(0.7 ~ 0.8mm). Correct the gap, if necessary, by carefully bending the side electrode with a suitable
tool.
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Install the spark plug carefully, by hand, to avoid cross-threading.
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Install the spark plug cap on the spark plug.
