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Mercury 135 Optimax User Manual

Mercury 135 Optimax
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OUTBOARD INSTALLATION
78
4. Secure propeller nut by bending three of the tabs into the thrust hub grooves.
26945
Trim In Pin
!
WARNING
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.
Some boats, particularly some bass boats, are built with a greater than normal transom angle, which will
allow the outboard to be trimmed further in or under. This greater trim under capability is desirable to
improve acceleration, reduce the angle and time spent in a bow high boat during planing off, and in some
cases, may be necessary to plane off a boat with aft live wells, given the variety of available propellers
and height range of engine installations.
However, once on plane, the engine should be trimmed to a more intermediate position to avoid a bow-
down planing condition called plowing. Plowing can cause bow steering or over steering and inefficiently
consumes horsepower.
a
or116
a - Tilt pin (not included with engine)
Stainless Steel Tilt Pin 17-49930A 1
2749
Limits the down trim angle of the power trim
equipped engines, or aids in determining
the trim out angle on non-power trim
engines.
The owner may decide to limit the trim in. This can be accomplished by purchasing a stainless steel tilt
pin from your dealer and insert it in whatever adjustment hole in the transom brackets is desired. A non-
stainless steel shipping bolt should not be used in this application other than on a temporary basis.

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Mercury 135 Optimax Specifications

General IconGeneral
StartingElectric
ExhaustThrough Prop
Horsepower135 HP
Fuel Induction SystemDirect Fuel Injection
Alternator Amp60 Amp
Shaft Length20", 25"
Full Throttle RPM5250-5750
SteeringHydraulic

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