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Mercury OUTBOARD MOTOR - Spark Plug Service; Spark Plug Inspection and Replacement

Mercury OUTBOARD MOTOR
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MAINTENANCE
54
8. Place a block of wood between gearcase and propeller to prevent
rotation and tighten propeller nut. Secure propeller nut to the shaft with
cotter pin.
a
b
c
d
e
ob00489
a - Cotter pin
b - Propeller nut
c - Rear thrust hub
d - Propeller
e - Front thrust washer
Spark Plug Inspection And Replacement
!
WARNING
Avoid serious injury or death from fire or explosion caused by damaged
spark plug boots. Damaged spark plug boots can emit sparks. Sparks
can ignite fuel vapors under the engine cowl. To avoid damaging spark
plug boots, do not use any sharp object or metal tool such as pliers,
screwdriver, etc. to remove spark plug boots.
1. Remove the spark plug boot. Twist the rubber boot slightly and pull off.
ob00375

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