Trim / Tilt; Prop; Service And Care - Pro-Line Boats 27 Walk Owner's Manual

Trim / Tilt

The power trim system allows the operator to raise and lower motors throughout an
infinite number of settings between its upper and lower limits. There is a trim setting that
will yield maximum speed, stability or maneuverability for every throttle setting. Refer
to your engine manual for specific questions on trim / tilt.
For most conditions, the best all-round performance is obtained when the bow of the boat
is slightly out of the water and all motors are trimmed to the same degree.
General trim down (or "in") characteristics are:
* Starting position for best acceleration to plane.
* Lowers bow, providing better stability and ride in rough water.
* Reduces boat speed and economy due to increased drag of hull and drive.
* More spray over bow.
General trim up (or "out") characteristics are:
* Raises the bow of the boat out of the water resulting in less hull in the water.
* Greater speed and economy for a given throttle setting.
* Greater maneuverability (provided prop does not ventilate during the
maneuver).
* In excess, the reduced stability can lead to bouncing, porpoiseing, and
propeller ventilation.
In addition to providing ideal boat performance, the power trim / tilt enables the motors
to be raised (tilted up) for trailering, beaching, and launching. Avoid operating the trim
switch if travel of the motor is blocked or it has reached the limits of travel.

Prop

If your Pro-Line was ordered with a factory installed engine, it will have a propeller that
has been performance tested to provide the best all-round performance for your engine /
hull combination at sea level. In some situations, it may be desirable to re-prop your
Pro-Line to enhance desired performance needs. For instance:
* Decreasing pitch will enhance acceleration and power at high loads.
* Increasing pitch will increase speed at light loads.
* Decreasing diameter will compensate for loss of power at high altitudes.
* Increasing diameter results in higher efficiency at low speeds at the
expense of top end speed and acceleration.
Be sure not to over rev the engine when re-propping or engine damage could result.
Operating your engine with a damaged prop will decrease performance, increase fuel
consumption, and may introduce undesirable handling characteristics. The vibration
caused by running a damaged prop could cause costly damage to your lower drive unit.

Service and Care

To enjoy trouble free use of your Pro-Line follow the recommended procedures and
instructions relating to the service and care of your boat. Failure to follow the following
maintenance practices will result in shorter life of your equipment and may void your
warranty.
Much of the installed equipment on your Pro-Line is warranted separately. Follow the
care instructions found in your owner's packet to keep these warranties in force.
Your engine manual contains service information relating to your particular engine
installation. Follow the provided recommendations for trouble free service and to
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