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Mercury 15 FourStroke User Manual

Mercury 15 FourStroke
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TROUBLESHOOTING
103
Starter Motor Will Not Crank the Engine (Electric
Start Models)
POSSIBLE CAUSES
Blown 20 amp fuse in the starting circuit. Refer to
Maintenance section.
Outboard is not shifted to neutral position.
Weak battery or battery connections are loose or corroded.
Ignition key switch/start button failure.
Wiring or electrical connection faulty.
Starter motor or starter 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.
Ignition system component failure.
Spark plugs fouled or defective. Refer to Maintenance
section.
Engine Runs Erratically
POSSIBLE CAUSES
Low oil pressure. Check oil level.

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Mercury 15 FourStroke Specifications

General IconGeneral
BrandMercury
Model15 FourStroke
CategoryOutboard Motor
LanguageEnglish

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