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Checking Spark Plug (See Fig 14)
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Disconnect the spark plug cap from the spark plug.
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Before removing the spark plug, clean the area around its base to prevent debris from entering the engine.
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Remove the spark plug with a comerically available13/16 spark plug wrench
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Inspect spark plug. Replace if electrodes are worn or if the insulator is cracked or chipped.
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Clean carbon deposits off the electrode with a wire brush.
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Check the electrode gap with a suitable gauge and slowly adjust to 0.7 - 0.8 mm if necessary.
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Reinstall spark plug and tighten to Torque 22.0 – 26.9 Nm (16-20 ft-lb).
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Reconnect spark plug cap.
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If spark plug is worn replace only with an equivalent replacement part. Recommended spark plug: F7TC.
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Spark plug should be replaced annually.
A spark plug that is too loose can overheat and damage engine. A spark plug that is too
CAUTION!
tight can damage threads of the cylinder head.
MAINTENANCE
SPARK PLUG CAP
SPARK PLUG WRENCH
FIG 14
17
0.7 - 0.8 mm
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