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SPARK PLUG
CLEANING THE SPARK PLUG
Remove the carbon accumulated on the spark plug with a metallic wire brush or spark plug
cleaner.
Measure and, if necessary, re-adjust the spark plug electrode clearance with spark plug
clearance shim. Spark plug clearance should be 0.6 - 0.8mm.
Replace spark plug, being careful not to over-tighten. See the “Torque Specifications” sec-
tion of this guide for appropriate torque settings.
REPLACING THE SPARK PLUG
NOTE: Always clean the cylinder and spark plug area prior to removing the plug and
take care to prevent debris from entering cylinder when spark plug is removed.
1. Carefully remove the spark plug.
2. Replace with a new spark plug, of the appropriate type, being careful not to over-tighten.
See the “Torque Specifications” section of this guide for appropriate torque settings.
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