Protecting External Outboard Components; Protecting Internal Engine Components - Mercury 25 Series Owner's Manual

Flushing Device

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

Protecting Internal Engine Components

NOTE: Make sure the fuel system has been prepared for storage.
Refer to Fuel System , preceding.
IMPORTANT: Refer to Maintenance ‑ Spark Plug Inspection and
Replacement for correct procedure for removing spark plug boots.
• Place the outboard in water or connect flushing attachment for
circulating cooling water. Start the engine and let it run in
neutral to warm up.
• With engine running at fast idle, stop the fuel flow by
disconnecting the remote fuel line. When engine begins to
stall, quickly spray Quicksilver or Mercury Precision
Lubricants Storage Seal into carburetor until engine stops
from lack of fuel.
• Remove the spark plugs and inject a five second spray of
storage seal around the inside of the cylinder.
STORAGE
9192
Description
91‑44357Q 2
Attaches to the water intakes;
provides a fresh water
connection when flushing the
cooling system or operating the
engine.
Where Used
External metal
surfaces
94
Part No.
92-802878 55