Mercury 250 Specifications download pdf (Page 116)

STORAGE

106 eng

Storage Preparation

The major consideration in preparing your outboard for storage is

to protect it from rust, corrosion, and damage caused by freezing

of trapped water.

The following storage procedures should be followed to prepare

your outboard for out of season storage or prolonged storage

(two months or longer).

NOTICE

Without sufficient cooling water, the engine, the water pump,

and other components will overheat and suffer damage.

Provide a sufficient supply of water to the water inlets during

operation.

Fuel System

IMPORTANT: Gasoline containing alcohol (ethanol or methanol)

can cause a formation of acid during storage and can damage

the fuel system. If the gasoline being used contains alcohol, it is

advisable to drain as much of the remaining gasoline as possible

from the fuel tank, remote fuel line, and engine fuel system.

The most effective method of storage preparation is to add the

recommended amount of Mercury Precision Fuel Stabilizer and

Mercury Precision Quickleen products as described on the

containers to the fuel tank before the last operation of the boat.

Adding fuel stabilizer will help prevent the formation of varnish

and gum in the gasoline. The Mercury Precision Quickleen

product will help clean and lubricate the fuel injectors.

1. Portable fuel tank ‑ Pour the required amount of gasoline

stabilizer and Quickleen (follow instructions on containers)

into fuel tank. Tip fuel tank back and forth to mix stabilizer

and Quickleen with the fuel.

2. Permanently installed fuel tank ‑ Pour the required amount

of gasoline stabilizer and Quickleen (follow instructions on

containers) into a separate container and mix with

approximately 1 liter (1 US qt) of gasoline. Pour this mixture

into fuel tank.

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Mercury 250 Specifications Page 116