OPERATING THE BOAT
SECTION
7
© 2003-2018 Ken Cook Co.
7 - 16
l Bass
• 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.
Control Hazard: Do not trim the engine out too far or
you may lose control of the boat. If you lose control of the boat, pull back on
the throttle and trim in at the same time.
See the Operating the Boat section of this manual 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 underway 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 underway, run the 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 steering wheel and the other on the throttle controls at
all times.
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 the boat has trim tabs, you can achieve further boat trim adjustment by using the
trim tabs in conjunction with the engine power trim equipment.
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