Propeller Replacement - Mercury 4C Instruction Manual

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Fuel tank: Water or dirt in the fuel tank will cause engine
performance problems. Check and clean the tank at
specified time or after the motor has been stored for a long
period of time (over three months).

Propeller Replacement

Rotating propellers can cause serious injury or death. Never
operate the boat out of the water with a propeller installed.
Before installing or removing a propeller, place the drive unit in
neutral and engage the lanyard stop switch to prevent the
engine from starting. Place a block of wood between the
propeller blade and the anti‑ventilation plate.
1. Remove the spark plug lead to prevent the engine from
starting.
2. Move the gear shift lever into neutral.
3. Straighten and remove the cotter pin.
4. Place a block of wood between the gearcase and the
propeller to hold the propeller and remove the propeller nut.
MAINTENANCE
WARNING
!
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F
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26899
27020
eng