Maintenance
86
stalling 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 pro-
peller shaft hole. Insert a new cotter pin
in the hole and bend the cotter pin ends.
NOTICE:
Do not reuse the cotter pin.
Otherwise, 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 pro-
peller nut to the specified torque, tighten the
nut further to align the slot with the hole.
EMU43934
Changing gear oil
WARNING
EWM00801
Be sure the outboard motor is securely
fastened 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, even when the tilt support lever or
knob is locked. Severe injury could oc-
cur if the outboard motor accidentally
falls.
1.
Tilt the outboard motor so that the gear
oil drain screw is at the lowest point pos-
sible.
2.
Place a suitable container under the gear
case.
3.
Remove the gear oil drain screw and
gasket. The screw is magnetic so a small
quantity of metal particles on the end of
the screw is normal. Simply remove
them.
NOTICE:
If there is an excessive
quantity of metal particles on the
magnetic gear oil drain screw, this
can indicate lower unit problem. Con-
sult your Yamaha dealer.
[ECM01901]
1. Cotter pin
2. Propeller nut
3. Washer
4. Spacer
5. Propeller
6. Thrust washer
Propeller nut tightening torque:
54 Nm (5.51 kgf-m, 39.8 ft-lb)
1. Cotter pin
4 3
2
1
5
6
ZMU07899
1
ZMU06956
U6EK70E0.book Page 86 Friday, January 31, 2014 2:37 PM