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SPARK PLUG
CHANGING THE SPARK PLUGS AND CHECKING THE
SPARK PLUG GAP
Reference engine owner’s manual for spark plug
locations.
1. In order to access the spark plugs it is
recommended to remove the rear engine cover.
This can be accomplished by removing the four
carriage bolts using a 9/16” wrench.
2. Remove the spark plug cap and use an
appropriate socket to remove the spark plug.
3. Check the gap of the spark plug by using a feeler
gauge and set gap to the recommend value in
the engine’s service manual.
4. If the spark plug is worn, overheated, wet or
carbon-fouled replace the spark plug.
5. Install the plug into cylinder head and torque to
the recommended specifications in engine’s
service manual. Be careful not to overtighten the
spark plug.
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