Trim Plate Adjustment - Mercury 200 OptiMax Jet Drive Service Manual

7. Priming the pump will remove any air that may be in the pump, oil supply hose, or internal passages.
a
c
b

Trim Plate Adjustment

The jet drive unit trim plate is factory set for general applications. Should a particular boat experience porpoising problems, the
trim plate can be adjusted as follows:
1. Loosen both jam nuts on the trim plate (one starboard and one port).
a
2. Turn both screws the exact same number of turns. Tighten both jam nuts against the trim plate. The distance from top of nut
to bottom of boss should be equal on both sides.
Adjusting the trim plate may affect boat handling, resulting in sensitive steering or reduced turning ability. Boat handling
characteristics also vary with the load distribution in the boat. Use caution after adjusting and check for acceptable handling
characteristics under all loading conditions.
90-8M0050731 MAY 2011
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a -
b -
c -
d -
e -
f -
b
c
d
e
f
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WARNING
!
a - Toolbox icon
b - Active Diagnostics icon
c - Oil Pump Prime test
Trim plate components (one each side)
Jam nut
Small diameter washer
Large diameter washer
Plate
Screw
Jet Installation
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