Removing Propeller; Installing Propeller - Yamaha F4 Manuel De L'utilisateur

Maintenance
Checkpoints
 Check each of the propeller blades for ero-
sion from cavitation or ventilation, or other
damage.
 Check the propeller shaft for damage.
 Check the splines for wear or damage.
 Check for fish line tangled around the pro-
peller shaft.
1. Propeller shaft
 Check the propeller shaft oil seal for dam-
age.
EMU30663

Removing propeller

EMU39311
Spline models
1. Straighten the cotter pin and pull it out
using a pair of pliers.
2. Remove the propeller nut and washer.
WARNING! Do not use your hand to
hold the propeller when loosening the
propeller nut.
[EWM01891]
1. Cotter pin
2. Propeller nut
68
1
ZMU06777
1
2
3
4
5
ZMU08164
3. Washer
4. Propeller
5. Thrust washer
3. Remove the propeller and thrust washer.
EMU30673

Installing propeller

EMU39327
Spline models
ECM00502
NOTICE
Make sure to use a new cotter pin and
bend the ends over securely. Otherwise,
the propeller could come off during oper-
ation and be lost.
1. Apply Yamalube Marine Grease or
Yamaha grease D (corrosion resistant
grease) to the propeller shaft.
2. Install the thrust washer and propeller
onto the propeller shaft. NOTICE: Make
sure to install the thrust washer before
installing the propeller. Otherwise, the
lower case and propeller boss could
be damaged.
[ECM01882]
3. Install the washer and tighten the propel-
ler nut until there is no looseness in the
propeller.
1. Cotter pin
2. Propeller nut
3. Washer
4. Propeller
5. Thrust washer
1
2
3
4
5
ZMU08165