Mercury 300XS OptiMax User Manual

STORAGE
89
5. Remove the drain hose from the forward hose fitting (left side
of the chamber). Hold the unattached end of the hose over a
suitable container.
c
a
ob01589
b
a - Forward hose fitting
b - Float chamber drain
screw
c - Drain hose
6. Loosen the float chamber drain screw (right side of the
chamber) and allow the contents to drain.
7. Tighten drain screw and reattach the hose.
8. Premix the following in a container:
• 8 cc (0.3 oz.) or 2 teaspoons of Mercury Precision
Quickleen lubricant.
• 8 cc (0.3 oz.) or 2 teaspoons of Mercury Precision Fuel
Stabilizer.
9. Remove the fuel filter. Refer to Fuel System in the
Maintenance section of this manual.
10.Pour the mixture into the fuel filter opening.
11.Install the fuel filter.
12.Prime the fuel system as described in the Starting the
Engine in the Operation section of this manual.

Mercury 300XS OptiMax Specifications

General

Engine Type	2-Stroke
Horsepower	300 HP
Alternator Output	60 amp / 756 watt
Gear Ratio	1.75:1
Starting System	Electric
Fuel System	2-Stage Direct Fuel Injection (DFI)
Weight	505 lbs / 229 kg
Cylinders	6
Steering	Hydraulic
Shaft Length	25"