Yamaha F9.9 Owner's Manual page 91

2. Start the engine. Warm it up and keep the
idle speed for 5-10 minutes.
3. Stop the engine and leave it for 5-10 min-
utes.
4. Remove the top cowling.
5. Remove the oil filler cap. Pull out the dip-
stick and use the oil changer to extract
the oil completely.
1. Oil filler cap
1
1. Oil changer
TIP:
When using an oil changer, skip steps 6 and
7.
6. Prepare a suitable container that holds a
larger amount than the engine oil capaci-
ty. Remove the drain screw and gasket
while holding the container under the
drain hole. Let the oil drain completely.
Wipe up any spilled oil immediately.
1
1. Drain screw
2. Gasket
1
TIP:
If the oil does not drain easily, change the tilt
angle or turn the outboard motor to port and
starboard to drain the oil.
7. Put a new gasket on the oil drain screw.
Apply a light coat of oil to the gasket and
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install the drain screw.
Drain screw tightening torque:
24 Nm (2.45 kgf-m, 17.7 ft-lb)
TIP:
If a torque wrench is not available when you
are installing the drain screw, finger tighten
the screw just until the gasket comes into con-
tact with the surface of the drain hole. Then
tighten 1/4 to 1/2 turn more. Tighten the drain
screw to the correct torque with a torque
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wrench as soon as possible.
Maintenance
2
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85