Operation
“
” (up).
To lower the bow (trim-in), press the switch
” (down).
Make test runs with the trim set to different
To raise the bow (“trim-out”), tilt the engine
up.
To lower the bow (“trim-in”), tilt the engine
down.
“
angles to find the position that works best for Make test runs with the trim set to different
your boat and operating conditions.
angles to find the position that works best for
EMU27891
Adjusting trim angle for hydro tilt
your boat and operating conditions.
EMU27911
models
Adjusting boat trim
When the boat is on plane, a bow-up attitude
results in less drag, greater stability and effi-
ciency. This is generally when the keel line of
the boat is up about 3 to 5 degrees. With the
bow up, the boat may have a greater tenden-
EWM00490
WARNING
q
q
Stop the engine before adjusting the
trim angle.
Be sure all people are clear of the out-
board motor when adjusting the tilt an- cy to steer to one side or the other. Compen-
gle, also be careful not to pinch any sate for this as you steer. The trim tab can
body parts between the drive unit and also be adjusted to help offset this effect.
clamp bracket.
When the bow of the boat is down, it is easier
to accelerate from a standing start onto
plane.
q
Use caution when trying a trim position
for the first time. Increase speed gradu-
ally and watch for any signs of instabil-
ity or control problems. Improper trim
angle can cause loss of control.
1.
2.
Stop the engine.
Place the tilt lock lever in the release po-
sition.
Bow Up
Too much trim-out puts the bow of the boat
too high in the water. Performance and econ-
omy are decreased because the hull of the
boat is pushing the water and there is more
air drag. Excessive trim-out can also cause
the propeller to ventilate, which reduces per-
formance further, and the boat may “por-
poise” (hop in the water), which could throw
the operator and passengers overboard.
ZMU04061
3.
4.
Hold the rear of the top cowling with one
hand and tilt the engine to the desired
angle.
Place the tilt lock lever back into the lock
position to support the engine.
41
| Categories | Yamaha Outboard Manuals |
|---|---|
| Document Type | Boat Motor Manual Free Download. Marine Operator's Boating Guide. |
| Tags | Yamaha F40 |
| Model Year | 2007 |
| Download File |
|
| Language | English |
| Product Brand | Yamaha Motor. Yamaha Motor Corporation, USA - Support Customer Relations for US: 1-800-962-7926
Yamaha Boats: 1-800-962-7926 Yamaha Outboard Customer Relations: 1-866-894-1626 , Yamaha Outboard |
| Document File Type | |
| Publisher | yamaha-motor.com |
| Wikipedia's Page | Yamaha Motor Company |
| Copyright | Attribution Non-commercial |
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