Power Trim Operation - Mercury 225 Pro XS User Manual

FEATURES AND CONTROLS
• The term trim generally refers to the adjustment of the outboard within
the first 20° range of travel.
• The term tilt generally refers to adjusting the outboard further up out
of the water or beyond the transom bracket support.
With the engine turned off, the outboard can be tilted out of the water. At
low idle speed, the outboard can also be tilted up past the trim range to
permit, for example, shallow water operation.

Power Trim Operation

With most boats, operating around the middle of the trim range will give
satisfactory results. Trimming your outboard all the way in or out may
improve performance, but cause some potential control hazards.
Avoid possible serious injury or death. When the outboard is trimmed in
or out beyond a neutral steering condition, a pull on the steering wheel
in either direction may result. Failure to keep a continuous firm grip on
the steering wheel when this condition exists can result in loss of boat
control as the outboard can turn freely. The boat can now spin out or go
into a very tight maximum turn which, if unexpected, can result in
occupants being thrown within the boat or out of the boat.
Consider the following lists carefully.
Trimming in/down can:
• Lower the bow of the boat.
• Result in quicker planing off.
• Generally improve the ride in choppy water.
• Increase steering torque or pull to the right (with the normal right‑hand
rotation propeller).
• In excess, lower the bow to a point at which the boat begins to plow
with the bow in the water while on plane. This can result in an
unexpected turn in either direction called bow steering or over steering
if any turn is attempted, or if a significant wave is encountered.
Trimming out/up can:
• Lift the bow higher out of the water.
• Generally increase top speed.
• Gain clearance over submerged objects or a shallow bottom.
• Increase steering torque or pull to the left at a normal installation
height (with the normal right hand rotation propeller).
WARNING
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