Mercury 60 - Spark Plug Inspection and Replacement

10. Secure propeller nut by bending tabs up and against the flats on the
propeller nut.
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11. Install the spark plug leads.
Spark Plug Inspection and Replacement
!
WARNING
Damaged spark plug boots may emit sparks that can ignite fuel vapors under
the engine cowl, resulting in serious injury or death from a fire or explosion.
To avoid damaging the spark plug boots, do not use any sharp object or
metal tool to remove the spark plug boots.
1. Remove the spark plug boots. Twist the rubber boots slightly and pull off.
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2. Remove the spark plugs to inspect. Replace spark plug if electrode is
worn or the insulator is rough, cracked, broken, blistered, or fouled.
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MAINTENANCE
64 eng