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Mercury 40 4-Stroke User Manual

Mercury 40 4-Stroke
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OPERATION
39
Starting flooded engine (EFI) - Advance the throttle-only lever or control handle to the
maximum throttle-only position and continue to crank the engine for starting. Immediately
reduce engine speed after engine starts.
a
b
a
b
26840
a - Fully closed position b - Maximum fast idle speed position
7. Turn the ignition key to the "START" position. If the engine fails to start in ten seconds, return the
key to the "ON" position, wait 30 seconds and try again.
19804
8. After the engine starts, check for a steady stream of water flowing out of the water pump indicator
hole.
28521
IMPORTANT: If no water is coming out of the water pump indicator hole, stop engine and check cooling
water intake for obstruction. No obstruction may indicate a water pump failure or blockage in the cooling
system. These conditions will cause the engine to overheat. Have the outboard checked by your dealer.
Operating the engine while overheated will cause engine damage.
WARMING UP ENGINE
Before beginning operation, allow the engine to warm up at idling speed for three minutes.
Starting The Engine - Tiller Handle Models
Before starting, read the pre-starting check list, special operating instructions, and engine break-in
procedure in the Operation section.
NOTICE
Without sufficient cooling water, the engine, the water pump, and other components will overheat and
suffer damage. Provide a sufficient supply of water to the water inlets during operation.

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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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