Basic Boat Operation (Non-Dts Models); Launching And Boat Operation; Operation Chart; Starting And Stopping The Engine - MerCruiser 496 MAG Owner's Manual

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Section 3 - On the Water

2.
Examples of poor ventilation while a boat is moving:
a
Basic Boat Operation (Non‑DTS Models)

Launching and Boat Operation

IMPORTANT: Install the bilge drain plug prior to launching the boat.
Follow these guidelines when operating your boat to avoid possible water ingestion:
Do not turn the key off when the engine is above idle speed.
Do not use the lanyard stop switch to shut off the engine when operating above idle speed.
Enter the water slowly when launching your boat from a steep ramp.
Do not shift into reverse while on plane.
When coming off plane, avoid impact with large following waves by applying short, light bursts of power to minimize the wave
action against the stern of the boat.
Do not come off plane quickly and immediately shut of the engine.

Operation Chart

Before Starting
Install the bilge drain plug.
Open engine hatch.
Turn battery switch on.
Operate bilge blowers.
Open fuel shut off valve.
Open seacock, if equipped.
Close the drain system.
Place sterndrive unit in full down (in) position.
Check the engine oil.
Perform all other checks specified by your
dealer or boat builder.
Listen for Audio Warning Alarm to sound
when the ignition switch is in the "ON"
position.

Starting and Stopping the Engine

NOTE: Only perform those functions applicable to your power package.

Starting the Engine

1.
Check all items listed in the Operation Chart.
2.
Place the remote control handle in neutral.
Page 38
b

Operation Chart

After Starting
Observe all gauges to
check condition of engine. If
not normal, stop the engine.
Check for fuel, oil, water,
fluid and exhaust leaks.
Check shift and throttle
control operation.
Check steering operation.
a -
Operating the boat with the trim
angle of the bow too high
b -
Operating the boat with no
mc79556-1
forward hatches open (station
wagon effect)
While Underway
Observe all gauges
to check condition of
Turn the ignition key to the
engine. If not normal,
"OFF" position.
stop the engine.
Listen for the audio
Turn battery switch to the
alarm.
"OFF" position.
Close fuel shut off valve.
Close seacock, if equipped.
Flush cooling system if in
saltwater.
Drain bilge.
90-899883274 MARCH 2008
After Stopping

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