Operation
There are 5 holes provided in the clamp bracket
to adjust the outboard motor trim angle.
1.
Stop the engine.
2.
Tilt the outboard motor up, and then
remove the trim rod from the clamp bracket.
1.
Trim rod
3.
Change the position of the trim rod in
direction “A” to raise the bow (“trim-out”). Change
the position of the trim rod in direction “B” to lower
the bow (“trim-in”).
TIP:
The
outboard
motor
trim
angle
changes
approximately 4 degrees when the trim rod position is
changed by 1 hole.
4.
Make test runs with the outboard motor set
at different trim angles to find the position that works
best for your boat and operating conditions.
Adjusting boat trim
Generally, a boat is stable when the keel line of the
boat is up about 3 to 5 degrees. With the bow up,
the boat may have a greater tendency to steer to
one side or the other. If this occurs, adjust the trim
angle.
Bow Up
Too much trim-out puts the bow of the boat too
high in the water. Excessive trim-out can also cause
the propeller to ventilate, which reduces performance
further, and the boat may “porpoise” (hop in the
water), which could throw the operator and
passengers over- board.
Bow Down
Too much trim-in causes the boat to “plow”
through the water, decreasing fuel economy and
making it hard to increase speed. Resistance at
the bow is greatly increased, heightening the
danger of “bow steering” and making operation
difficult and dangerous.
39
A
B
1
Summary of Contents for MOTOR99
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