Mercury Jet 40 User Manual

TROUBLESHOOTING
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• Cavitation of the impeller due to rough water or obstruction in the boat hull.
• Blockage of the water intake.
Performance Loss
POSSIBLE CAUSES
• Throttle not fully open.
• Damaged impeller.
• Incorrect engine timing, adjustments, or setup.
• 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.

Mercury Jet 40 Specifications

General

Horsepower	40 HP
Cylinders	3
Weight	240 lbs (109 kg)
Steering	Remote
Displacement	45.6 cu in (747 cc)
Starting	Electric
Full Throttle RPM Range	5000 - 6000 RPM
Fuel Induction System	Carburetor
Alternator Output	18 Amp
Shaft Length	20 in