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Mercury 40 4-Stroke User Manual

Mercury 40 4-Stroke
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FEATURES & CONTROLS
29
!
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.
In rare circumstances, the owner may decide to limit the trim in. This is accomplished by
repositioning the tilt stop pins into the desired adjustment holes in the transom brackets.
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 water line
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. Press the knob in and rotate it to engage the tilt support lever.
2. Lower outboard to rest on the tilt support lever.
3. To disengage the tilt support lever, raise the outboard off the support lever and rotate the lever
down. Lower the outboard.
a
b
28931
a - Tilt support lever b - Knob
MANUAL TILTING
If the outboard cannot be tilted using the power trim/tilt switch, the outboard can be manually tilted.
1. Turn out the manual tilt release valve three turns counterclockwise. This allows manual tilting of
the outboard. Tilt the outboard to the desired position and tighten the manual tilt release valve.
26809

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Mercury 40 4-Stroke Specifications

General IconGeneral
Engine Type4-Stroke
Horsepower40 hp
Cylinders3
Fuel Induction SystemElectronic Fuel Injection (EFI)
StartingElectric
Displacement747 cc
Shaft Length20 in
Dry Weight216 lbs
SteeringRemote
Alternator Amp18 amp / 226 watt
Full Throttle RPM5500 - 6000 RPM

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