Protecting Internal Engine Components; Protecting External Outboard Components; Gearcase - Mercury 225 Pro XS User Manual

6. Premix the following in a container:
• 8 cc (0.27 oz.) or 2 teaspoons of Mercury Precision Quickleen
lubricant.
• 8 cc (0.27 oz.) or 2 teaspoons of Mercury Precision Fuel Stabilizer.
7. Remove the fuel filter. Refer to Maintenance ‑ Fuel System.
8. Pour mixture into the fuel filter opening.
9. Reinstall the fuel filter.
10. Prime the fuel system as outlined in the Operation ‑ Starting the
Engine.
11. Place the outboard in water or use the flushing attachment for
circulating cooling water. Start the engine and run at idle speed for 5
minutes to allow the treated fuel to fill the fuel system.

Protecting Internal Engine Components

NOTE: Make sure the fuel system has been prepared for storage. Refer to
Fuel System, preceeding.
IMPORTANT: Refer to Spark Plug Inspection and Replacement for correct
procedure for removing spark plug leads.
1. Remove the spark plugs and add approximately 30 ml (1 oz.) of
engine oil into each spark plug hole.
2. Rotate the flywheel manually several times to distribute the oil in the
cylinders.
3. Re‑install spark plugs.

Protecting External Outboard Components

• Lubricate all outboard components listed in Maintenance ‑ Inspection
and Maintenance Schedule.
• Touch up any paint nicks. See your dealer for touch‑up paint.
• Spray Quicksilver or Mercury Precision Lubricants Corrosion Guard
on external metal surfaces (except corrosion control anodes).
Tube Ref No.
Corrosion Guard
120

Gearcase

• Drain and refill the gearcase lubricant (refer to Maintenance ‑
Gearcase Lubrication).
STORAGE
Description Where Used
External metal
surfaces
80
Part No.
92-802878-5
5