Mercury 225 Manual page 68

• In rare circumstances, the owner may decide to limit the
trim in. This can be accomplished by purchasing a
stainless steel tilt pin from your dealer and inserting it in
whatever adjustment hole in the transom brackets is
desired. The nonstainless steel shipping bolt should not
be used in this application other than on a temporary
basis.
2. Trimming out or up can:
• Lift the bow higher out of the water
• Generally increase top speed
• Increase clearance over submerged objects or a shallow
bottom
• Increase steering torque or pull to the left at a normal
installation height (with the normal right‑hand rotation
propeller)
• In excess, can cause boat porpoising (bouncing) or
propeller ventilation
• Cause engine overheating if any cooling water intake
holes are above the waterline
TILTING OPERATION
To tilt outboard, shut off the engine and press the trim/tilt switch
or auxiliary tilt switch to the up position. The outboard will tilt up
until the switch is released or it reaches its maximum tilt position.
1. Engage the tilt support lever by rotating the knob to bring the
support lever upward.
2. Lower the outboard to rest on the tilt support lever.
3. Disengage the tilt support lever by raising the outboard off
the support lever and rotating the lever down. Lower the
outboard.
FEATURES AND CONTROLS
a - Tilt support lever
b - Knob
a
b
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