Mercury GO BOLDLY SeaPro 500hp Operation And Maintenance Manual page 65

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FEATURES AND CONTROLS
If the engine is below 2000 RPM and is in the trailer range, advancing the
throttle will allow the engine to achieve a maximum RPM of 4250. Engine
operation in this capacity (above the normal 2000 limit) should only be
used for loading or unloading the boat onto or off the trailer. It should not
be used during normal boat operation.
NOTE: Exceeding 4250 RPMs the engine PCM will begin Engine Guardian
protection.
a
a -
Trim switch
b -
Tilt range
c -
Trim range
POWER TRIM OPERATION
With most boats, operating around the middle of the trim range will give
satisfactory results. However, to take full advantage of the trimming capability
there may be times when you choose to trim the outboard all the way in or out.
Along with an improvement in some performance aspects comes a greater
responsibility for the operator, this being an awareness of some potential
control hazards.
Consider the following lists carefully:
1. Trimming in or down can:
• Lower the bow.
• Result in quicker planing off, especially with a heavy load or a stern
heavy boat.
• Generally improve the ride in choppy water.
• In excess, can lower the bow of some boats to a point where they
begin to plow with their bow in the water while on plane. This can
result in an unexpected turn in either direction (called bow steering or
oversteering) if any turn is attempted, or if a significant wave is
encountered.
eng
b
55
c
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