Trimming Outboard Motor; Adjusting Trim Angle For Manual Tilt Models - Yamaha F9.9 Manuel De L'utilisateur

3. Disconnect the fuel hose from the fuel
joint on the fuel tank.
2
1. Fuel joint
2. Fuel hose
4. Tighten the air vent screw by turning it
clockwise.
1. Air vent screw
5. When using the fuel tank on a boat, close
the fuel valve.
TIP:
Check the boat's manual for the position of
the fuel valve.
6. Remove the key if the boat will be left un-
attended.
TIP:
The engine can also be stopped by pulling
the cord and removing the clip from the en-
gine shut-off switch, then turning the main
switch to " " (off).
EMU27865
EWM00741
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Excessive trim for the operating condi-
tions (either trim up or trim down) can cau-
se boat instability and can make steering
the boat more difficult. This increases the
possibility of an accident. If the boat be-
gins to feel unstable or is hard to steer,
slow down and/or readjust the trim angle.
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The trim angle of the outboard motor helps
determine the position of the bow of the boat
in the water. Correct trim angle will help im-
prove performance and fuel economy while
reducing strain on the engine. Correct trim
angle depends upon the combination of
boat, engine, and propeller. Correct trim is
also affected by variables such as the load in
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the boat, sea conditions, and running speed.
ZMU07444
EMU27873
Adjusting trim angle for manual tilt
models
There are 4 or 5 holes provided in the clamp
bracket to adjust the outboard motor trim an-
gle.
1.
2.

Trimming outboard motor

WARNING
1. Trim operating angle
Stop the engine.
Tilt the outboard motor up, and then re-
move the trim rod from the clamp brack-
et.
Operation
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