Yamaha F225F Service Manual page 550

MNT
4. Remove the drain screw b and gasket
c. NOTICE: If there is a significant
amount of metal particles on the
magnetic drain screw, the lower unit
may have a problem.
5. Remove the check screw d and gasket
e and let the oil drain completely.
NOTICE: After the gear oil has been
drained, check the used oil. If the oil is
milky, water is getting into the lower
case, which can cause gear damage.
d e
a
b
c
TIP:
Before installing the magnetic drain screw,
make sure to remove all metal particles.
6. Place the outboard motor in an upright
position.
7. Insert the gear oil pump into the drain
hole, and then fill the lower unit slowly
with gear oil until oil flows out of the
check hole and no air bubbles are visible.
8. Install a new gasket f and the check
screw d, and then tighten the check
screw d to the specified torque.
10-11
Maintenance
a
f
d
Recommended gear oil:
Hypoid gear oil
API: GL-5
SAE: 90, 80W-90
Oil quantity:
1.040 L (1.10 US qt, 0.92 lmp qt)
Check screw d: 9 N·m (0.9 kgf·m, 6.6 ft·lb)
9. Remove the gear oil pump, install a new
gasket g and the drain screw b, and
then tighten the drain screw b to the
specified torque.
b
Drain screw b: 9 N·m (0.9 kgf·m, 6.6 ft·lb)
10. Install the water inlet covers a, and then
tighten the water inlet cover bolt h to the
specified torque.
g