Performance Loss; Battery Will Not Hold Charge - Mercury 40 CT Maintenance And Installation Manual

c. Stuck antisiphon valve located on permanently built‑in type fuel tanks.
d. Fuel line is kinked or pinched.
• Fuel pump failure.
• Ignition system component failure.
• Fuel injection component failure (EFI models).

Performance Loss

POSSIBLE CAUSES
• Engine Guardian System activated. Refer to Features and 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.
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