Maintenance
58
3.
Remove the propeller and thrust washer.
EMU41963
Installing propeller
WARNING
EWM00771
On counter rotation models, be sure to use a propeller
intended for counterclockwise rotation. These propel-
lers are identified with the letter “L” after the size indica-
tion on the propeller. Otherwise the boat could move in
the opposite direction from that expected.
NOTICE
ECM00502
Make sure to use a new cotter pin and bend the ends
over securely. Otherwise, the propeller could come off
during operation and be lost.
1.
Apply Yamalube Marine Grease to the propeller shaft.
2.
Install the thrust washer and propeller on 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 spacer, washer, and propeller nut. Tighten the
propeller nut to the specified torque.
4.
Align the propeller nut slot with the propeller shaft hole.
Insert a new cotter pin in the hole and bend the cotter
pin ends.
NOTICE:
Do not reuse the cotter pin. Oth-
erwise, the propeller can come off during operation.
[ECM01892]
TIP:
If the propeller nut slot does not align with the propeller shaft
hole after tightening the propeller nut to the specified torque,
tighten the nut further to align the slot with the hole.
EMU47941
Changing gear oil
WARNING
EWM02531
Make sure that the outboard motor is mounted se-
curely to the transom or a stable stand. You could be
severely injured if the outboard motor falls on you.
Never get under the lower unit while it is tilted. Severe
injury could occur if the outboard motor accidentally
falls.
Before filling the lower unit with gear oil, the outboard motor
must be placed in a vertical position. If you are not able to
place the outboard motor in a vertical position, have a
Yamaha dealer change the gear oil.
1.
Tilt the outboard motor so that the gear oil drain bolt is
at the lowest point possible.
2.
Place a suitable container under the lower unit.
3.
Loosen the bolts, and then remove the cooling water in-
let covers on both sides of the lower unit.
4.
Remove the gear oil drain bolt and O-ring.
1. Cotter pin
2. Propeller nut
3. Washer
4. Spacer
5. Propeller
6. Thrust washer
1. Thrust washer
2. Propeller
3. Spacer
4. Washer
5. Propeller nut
6. Cotter pin
Propeller nut tightening torque:
80 N·m (8.0 kgf·m, 59 lb·ft)
4 3
2
1
5
6
3 4
5
6
2
1
1. Cotter pin
1. Bolt
2. Cooling water inlet cover
1
ZMU06956
2
1
2
2
2
1
U6GR30E0.book Page 58 Thursday, April 12, 2018 9:28 AM
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2019 Yamaha Motor Corporation, U.S.A.
