d. Fuel line is kinked or pinched.
e. Injector plugged.
• Threaded connection of an air hose is loose.
• Fuel pump failure.
• Ignition system component failure.
Performance Loss
POSSIBLE CAUSES
• Throttle not fully open.
• Damaged propeller or improper propeller size.
• Boat overloaded or load improperly distributed.
• Excessive water in bilge.
• Boat bottom is dirty or damaged.
Battery Will Not Hold Charge
POSSIBLE CAUSES
• Battery connections are loose or corroded.
• Low electrolyte level in battery.
• Worn out or inefficient battery.
• Excessive use of electrical accessories.
• Defective rectifier, alternator, or voltage regulator.
• Open circuit in the alternator output wire (fused link).
Jet Application Troubleshooting
PERFORMANCE LOSS
Possible causes
• Throttle not fully open.
• Damaged impeller.
• Boat overloaded or load improperly distributed.
• Excessive water in bilge.
• Boat bottom is dirty or damaged.
ENGINE OVERSPEED (EXCESSIVE RPM)
Possible causes
• Outboard mounted too high on the transom.
• Worn jet pump impeller or liner.
• Incorrect jet pump impeller clearance adjustment.
• Tilting the outboard out beyond a vertical position.
TROUBLESHOOTING
112 eng
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