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Mercury Jet 40 - Performance Loss; Battery Will Not Hold Charge

Mercury Jet 40
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TROUBLESHOOTING
55
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.

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