Maintenance
62
Checkpoints
●
Check each of the propeller blades for
wear, erosion from cavitation or ventila-
tion, or other damage.
●
Check the propeller shaft for damage.
●
Check the splines / shear pin for wear or
damage.
●
Check for fish line tangled around the pro-
peller shaft.
●
Check the propeller shaft oil seal for dam-
age.
NOTE:
If the shear pin equipped: it is designed to
break if the propeller hits a hard underwater
obstacle to help protect the propeller and
drive mechanism. The propeller will then
spin freely on the shaft. If this happens, the
shear pin must be replaced.
EMU30660
Removing the propeller
EMU29194
Spline models
1.
Straighten the cotter pin and pull it out
using a pair of pliers.
2.
Remove the propeller nut, washer, and
spacer (if equipped).
3.
Remove the propeller and thrust wash-
er.
EMU30670
Installing the Propeller
EMU29241
Spline models
WARNING
EWM00770
On counter rotation models, be sure to
use a propeller intended for counter-
clockwise rotation. These propellers are
identified with the letter “L” after the size
indication on the propeller. Otherwise the
boat could move in the opposite direction
ZMU01897
1. Cotter pin
2. Propeller nut
3. Washer
4. Spacer
5. Propeller
6. Thrust washer
1
6
5
4
3
2
ZMU01898
©
2019 Yamaha Motor Corporation, U.S.A.
