Battery Storage; Power Package Recommissioning - MerCruiser Scorpion 350 User Manual

3. On models with a seawater pickup pump, remove the two blue drain plugs. If the
seawater pickup pump does not have blue drain plugs, or you are unable to access
them, loosen the clamps and remove both hoses.
4. Crank the engine over slightly with the starter motor to purge any water trapped in the
seawater pickup pump. Do not allow the engine to start.
5. Before launching the boat or starting the engine, close the drain system by installing
the blue drain plugs.
6. Open the seacock, if equipped, or unplug and reconnect the water inlet hose before
operating the engine.

Battery Storage

Whenever the battery will be stored for an extended period of time, be sure the cells are
full of water and the battery is fully charged and in good operating condition. It should be
clean and free of leaks. Follow the battery manufacturer's instructions for storage.

Power Package Recommissioning

1. Ensure that all cooling system hoses are connected properly and hose clamps are tight.
Disconnecting or connecting the battery cables in the incorrect order can cause injury
from electrical shock or can damage the electrical system. Always disconnect the
negative (‑) battery cable first and connect it last.
2. Install a fully charged battery. Clean the battery cable clamps and terminals and
reconnect cables. Tighten each cable clamp securely when connecting.
3. Coat the terminal connections with a battery terminal anti‑corrosion agent.
4. Perform all the checks in the before starting column of the Operation Chart.
Without sufficient cooling water, the engine, the water pump, and other components will
overheat and suffer damage. Provide a sufficient supply of water to the water inlets during
operation.
5. Start the engine and closely observe instrumentation to ensure that all systems are
functioning correctly.
6. Carefully inspect the engine for fuel, oil, fluid, water and exhaust leaks.
7. Inspect the steering system, shift and throttle control for proper operation.
90-899883175 DECEMBER 2007
b
a - Hose clamps
b - Blue drain plugs
a
CAUTION
!
NOTICE
Section 6 - Storage
6145
Page 81