Yamaha F8C - Installing Propeller; Changing Gear Oil

Maintenance
68
EMU30673
Installing propeller
EMU29235
Spline models
NOTICE
ECM00502
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 Yamaha marine grease or a corro-
sion resistant grease to the propeller
shaft.
2. Install the spacer (if equipped), thrust
washer, washer (if equipped), and pro-
peller on the propeller shaft. NOTICE:
Make sure to install the thrust washer
before installing the propeller. Other-
wise, the lower case and propeller
boss could be damaged.
[ECM01882]
3. Install the spacer (if equipped) and the
washer. Tighten the propeller nut to the
specified torque.
4. Align the propeller nut 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.
Otherwise, the propeller can come off
during operation.
[ECM01892]
TIP:
If the propeller nut does not align with the
propeller shaft hole after tightening to the
specified torque, tighten the nut further to
align it with the hole.
EMU2928C
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. NOTICE: If there is an exces-
sive quantity of metal particles on the
magnetic gear oil drain screw, this
can indicate lower unit problem. Con-
sult your Yamaha dealer.
[ECM01901]
Propeller nut tightening torque:
F8CMH 17 Nm (1.73 kgf-m,
12.5 ft-lb)
FT8DE 21 Nm (2.14 kgf-m, 15.5 ft-lb)
FT8DEP 21 Nm (2.14 kgf-m,
15.5 ft-lb)
FT8DMH 21 Nm (2.14 kgf-m,
15.5 ft-lb)
U60R79E0.book Page 68 Wednesday, December 18, 2013 1:32 PM