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Mercury Bravo Sterndrive 520 - Engine Hard to Start, Runs Rough, Misses, And;Or Backfires; Low Engine Coolant (Closed Cooling) Temperature

Mercury Bravo Sterndrive 520
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14. Before launching the boat, pull up on the manual release valve. Verify that
the green indicators are no longer extended.
a - Manual pressure release valve
b - Threaded cap for air connection
c - Green indicators
15. Open the seacock, if equipped, or unplug and reconnect the water inlet
hose prior to operating the engine.
BOAT OUT OF THE WATER
NOTE: This procedure is written for the air pump that is attached to the engine.
However, any air source can be used.
1. Place the boat on a level surface and ensure that the boat is level.
2. Obtain the air pump.
3. Ensure that the lever on top of the pump is flush with the handle
(horizontal).
4. Install the air pump on the air connection.
5. Pull the lever on the air pump (vertical) to seal the pump to the air
connection.
a
b
c
50399
COLD WEATHER OR EXTENDED STORAGE
96 eng

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