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Mercury SST120 - Service Assistance Steps

Mercury SST120
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51
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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 rectifier, alternator, or voltage regulator.
6 – ENGINE OVERHEATING
POSSIBLE CAUSES
Cooling system clogged.
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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