OPERATION
39
• Help the boat accelerate and plane off quicker.
• Generally improve the ride in choppy water.
• In most cases, reduce boat speed.
• If in excess, lower the bow of some boats to a point at which 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 over steering. if any turn is attempted or if a significant wave is
encountered.
POWER TRIM OPERATION
!
CAUTION
Avoid twisting or binding dual engine tie bars. Damage to the tie bar
and sterndrives could occur. Always raise or lower the sterndrive units
evenly.
!
CAUTION
Avoid excessive wear on the U‑joint/input shaft. The VI drive does not
have a trim limit switch. Depressing the trim or trailer buttons allows the
drive to be tilted to its full extension without stopping at a preset trim
limit. The drive's position should be monitored with the trim gauge(s) so
that the drive is not trimmed excessively.
IMPORTANT: If the power trim button is held depressed after the drive
unit(s) reaches the end of upward travel, an internal circuit breaker opens
and the pump stops. Should this happen, release the button and allow
the trim pump motor to cool for about one minute, at which time the circuit
breaker will reset and power trim operation may be resumed.
Power trim switch in handle (can control up to three drives):
• Raise the drive unit: Press (top) up/out button on trim switch until the
drive unit(s) reaches the desired trim position.
• Lower the drive unit: Press (bottom) down/in button on trim switch
until drive unit(s) reaches the desired position.
Console mounted power trim switch (one switch per drive)
NOTE: On multiple engine installations, the individual trim switches can
be used to fine tune the drives by setting each drive unit to the desired
trim angle. The use the single trim switch in the handle to control the trim
of all drive units simultaneously.
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