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Mercury 75 OptiMax User Manual

Mercury 75 OptiMax
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TROUBLESHOOTING
eng 91
Starter Motor Will Not Crank the Engine
POSSIBLE CAUSES
Blown 20 amp fuse in the starting circuit. Refer to
Maintenance.
Outboard is not shifted to neutral position.
Weak battery or battery connections are loose or corroded.
Ignition key switch failure.
Wiring or electrical connection faulty.
Starter motor solenoid or slave solenoid failure.
Engine Will Not Start
POSSIBLE CAUSES
Lanyard stop switch not in "RUN" position.
Battery not fully charged.
Incorrect starting procedure. Refer to Operation section.
Old or contaminated fuel.
Fuel is not reaching the engine.
Fuel tank is empty.
Fuel tank vent not open or restricted.
Fuel line is disconnected or kinked.
Primer bulb not squeezed.
Primer bulb check valve is faulty.
Fuel filter is obstructed. Refer to Maintenance section.
Fuel pump failure.
Fuel tank filter obstructed.
Open 20 amp fuse. Check fuses, refer to Maintenance
section.
Threaded connection of an air hose is loose.
Ignition system component failure.
Spark plugs fouled or defective. Refer to Maintenance
section.

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Mercury 75 OptiMax Specifications

General IconGeneral
Engine Type2-stroke
Displacement1526 cc
Horsepower75 hp
Alternator60 amp / 756 watt
Cylinders3
StartingElectric
Full Throttle RPM Range5000-5750 rpm
SteeringRemote
Fuel Induction System2-stage direct fuel injection
Shaft Length20"
Weight170 kg

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