Single Engine Trim/Trailer; Dual Engine Trim/Trailer - Mercury 3.0L Carbureted Alpha Series User Manual

GETTING TO KNOW YOUR POWER PACKAGE
Trimming sterndrive unit DOWN/IN can:
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.
0170

SINGLE ENGINE TRIM/TRAILER

Single engine applications will have a button that can be pressed to trim the sterndrive unit
up or down.
To raise the sterndrive unit for trailering, beaching, launching and low speed (below 1200
rpm), shallow water operation push the trim button to raise the sterndrive unit to the full
UP/OUT position.
Some controls also have a trailer button that trims the sterndrive to a position suitable for
trailer purposes only.
0171

DUAL ENGINE TRIM/TRAILER

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.
Dual engine applications may have a single integral button to operate both sterndrive units
simultaneously or may have separate buttons for each sterndrive unit.
Some controls also have a trailer button that trims the drives to a position suitable for trailer
purposes only.
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CAUTION
mc79530
90-860168040 JANUARY 2004