Mercury 40 4-Stroke User Manual

TROUBLESHOOTING
66
Performance Loss
POSSIBLE CAUSES
• Engine Guardian System activated. Refer to Features & Controls - Warning System.
• 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.

Mercury 40 4-Stroke Specifications

General

Brand	Mercury
Model	40 4-Stroke
Category	Outboard Motor
Language	English