Trim Angle Adjusting - SELVA MARINE SEA HORSE2,5 Owner's Manual

Trim angle adjusting

The trim angle is the inclination angle, that should be given to the motor in
order to obtain an optimal performance from your boat.
An improper trim angle does not only affect the performance of
your boat, but can also cause loss of control, which means
danger for the people on board.
While sailing the motor should be perpendicular to the water
surface, but the trim angle can be 3 degrees to 5 degrees.
If the trim angle is made too great, the buoyancy center of the
boat will shift towards the stern. In this condition, and if the
stability moment at the bow is large, the boat will tend to
"porpoise". If the trim angle is insufficient, the bow may
"plough", making the boat unstable.
When the boat is in stable trim it remains parallel to the water.
To adjust the trim angle proceed as follows:
c
−
tilt up the motor;
−
bloc the engine in the tilt position turning downwards the engine tilt
cam;
−
remove the adjusting-rod and reposition the rod in the desired hole,
which allows the appropriate trim angle;
−
lift the engine, unlock the tilt support bar and bring again the motor
in the vertical position, so that it leans on the adjustment pin;
Improperly distributed load on boat or in different positions, can
alter the ideal trim conditions.
You must adjust the trim angle when the engine is switched
off.
Ensure the transom clamp screws are tightened securely
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Picture No. 29