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Mercury 300 - PRO MAX 3.0L - Battery Will Not Hold Charge; Engine Overheating

Mercury 300 - PRO MAX 3.0L
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72
oj
TROUBLESHOOTING
5 – BATTERY WILL NOT HOLD CHARGE
POSSIBLE CAUSES
Battery connections are loose or corroded.
Low electrolyte level in battery.
Inefficient battery.
Excessive use of electrical accessories.
Defective alternator, or voltage regulator.
6 – ENGINE OVERHEATING
(CONTINUOUS HORN SOUND)
POSSIBLE CAUSES
Cooling system clogged
Engine overloaded (cannot attain recommended RPM)
Incorrect ignition timing
Incorrect transom height (water pickups not getting adequate
water supply)
Not enough oil in fuel mixture
Lean fuel mixture

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