Mercury 250 Specifications download pdf (Page 118)

STORAGE

108 eng

10.

Remove the fuel filter. See Maintenance ‑ Fuel System for

procedure.

11.Pour this mixture into the fuel filter opening. Install the fuel

filter.

12.

Prime the fuel system. See Operation ‑ Starting The

Engine.

13.Place the outboard in water or use the flush hose or flushing

device or for circulating cooling water. Start the engine and

run at idle speed for five minutes to allow the treated fuel to

fill the fuel system.

Flushing Device

91‑44357Q 2

9192

Attaches to the water intakes;

provides a fresh water

connection when flushing the

cooling system or operating

the engine.

Protecting Internal Engine Components

NOTE: Make sure the fuel system has been prepared for

storage. Refer to

Fuel System

, preceding.

IMPORTANT: Refer to Spark Plug Inspection and

Replacement for correct procedure for removing spark plug

leads.

1. Remove the spark plugs. Add approximately 30 ml (1 oz) of

engine oil or inject a five second spray of storage seal into

each spark plug hole.

2. Rotate the flywheel manually several times to distribute the

oil or storage seal in the cylinders.

3. Install the spark plugs.

Protecting External Outboard Components

• Lubricate all outboard components listed in Maintenance ‑

Inspection and Maintenance Schedule.

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Mercury 250 Specifications Page 118