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Mercury 300XS OptiMax User Manual

Mercury 300XS OptiMax
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MAINTENANCE
68
7. Check for water coming out of the water pump indicator hole.
Continue flushing for three to five minutes, carefully
monitoring water supply at all times.
8. Stop the engine, turn off the water, and remove the flushing
attachment. Re-install the propeller.
Top Cowl Removal and Installation
REMOVAL
Release the front and side cowl latches. Lift the top cowl from the
outboard.
or38
INSTALLATION
Position the top cowl over the engine. Make sure the bottom rubber
seal fits properly and lock the front and side latches.
Cleaning Care for Top Cowl
IMPORTANT: Dry wiping (wiping the plastic surface when it is dry)
will result in minor surface scratches. Always wet the surface
before cleaning. Follow cleaning and waxing procedure.
CLEANING AND WAXING PROCEDURE
1. Before washing, rinse the top cowl with clean water to remove
dirt and dust that may scratch the surface.
2. Wash the top cowl with clean water and a mild non-abrasive
soap. Use a soft clean cloth when washing.
3. Dry thoroughly with a soft clean cloth.

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Mercury 300XS OptiMax Specifications

General IconGeneral
Engine Type2-Stroke
Horsepower300 HP
Alternator Output60 amp / 756 watt
Gear Ratio1.75:1
Starting SystemElectric
Fuel System2-Stage Direct Fuel Injection (DFI)
Weight505 lbs / 229 kg
Cylinders6
SteeringHydraulic
Shaft Length25"

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