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Mercury 25 4-Stroke - Fluid Checks and Gearcase Maintenance

Mercury 25 4-Stroke
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TROUBLESHOOTING
66
Performance Loss
POSSIBLE CAUSES
Low oil pressure. Check oil level.
Throttle not fully open.
Damaged or improper size propeller.
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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