Monterey Sport Cruiser 260SCR, Owner'S Manual

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Operating Your Boat
Cruiser
7-11
General effects of power trim under way:
Trim in too far (closer to the transom):
• Speed decreases.
• Fuel economy decreases.
• Boat may handle and steer poorly.
• Boat will have difficulty achieving a proper
running, planing position.
Trim out too far (away from the transom):
• Steering torque increases.
• Speed decreases.
• Fuel economy decreases.
• Boat may handle and steer poorly.
• Boat will bounce or porpoise.
• Engine RPM increases.
• Propeller may ventilate as it nears the surface
of the water and slip excessively as it pulls air
from the surface. This will cause engine RPM to
rapidly rise.
• Boat will have difficulty getting on plane from an
idle position.
WARNING! Do not trim the engine out too far
or you may lose control of your boat. See
Safety Precautions at the beginning of this
section for more details.
General power trim operation guidelines:
• When getting on plane from an idle position,
start with the trim full in. As the throttle position
increases, the boat speed will increase and
drive the bow up. As acceleration proceeds, the
bow will start to come down. When the bow
starts to fall and the boat begins to plane, slowly
start to trim out.
• Trimming out while under way generally causes
the boat to rise up and plane. The boat begins
accelerating without adjusting the throttle as
less of the boat is dragging in the water.
Trimming up causes the engine RPM to
increase. It is very important to watch the
engine tachometer to keep it at or near full
throttle operating range and not to exceed the
engine’s wide-open throttle operation range.
See the
Engine Operator’s Manual for the
engine’s wide-open throttle operation range.
• To find the optimum trim position while under
way, run your boat at a stable planed angle with
the least possible amount of the hull in the
water. The boat reaches optimum trim position
when it is not porpoising or plowing excess
water.
High-speed operation on smooth water provides
stability, but you must maintain control by using
quick reactions and adjustments. Know your
limits and stay within them. Keep one hand on the
helm and the other on the throttle controls at all
times.
WARNING! If you lose control of your boat,
pull back on the throttle and trim in at the
same time.
Constant adjustments are necessary for rapidly
changing conditions. Small inputs of throttle and
steering are exaggerated at high speeds.
Depending on the speed, keep watch well ahead
so that you have enough time to react.
If your boat has trim tabs, you can achieve further
boat trim adjustment by using the trim tabs in
conjunction with the engine power trim
equipment.