Mercury 25 EFI FourStroke User Manual page 86

Operating the boat at high speeds with the outboard trimmed
too far under can create excessive bow steer, resulting in the
operator losing control of the boat. Install the trim limit pin in a
position that prevents excessive trim under and operate the
boat in a safe manner.
• In rare circumstances, the owner may decide to limit the
trim in. This can be accomplished by repositioning the tilt
stop pin into whatever adjustment hole in the transom
bracket is desired.
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 lever down.
2. Lower outboard to rest on the tilt support lever.
FEATURES AND CONTROLS
WARNING
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