Storage Preparation - Mercury 150 Operation, Maintenance And Installation Manual

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).
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 for storage preparation is to add the recommended
amount of Mercury Precision Fuel Stabilizer and Mercury Precision Quickleen
products as described on their 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 (follow
instructions on container) into fuel tank. Tip fuel tank back and forth to mix
stabilizer with the fuel.
2. Permanently installed fuel tank ‑ Pour the required amount of gasoline
stabilizer (follow instructions on container) into a separate container and
mix with approximately one liter (one US quart) of gasoline. Pour this
mixture into fuel tank.
3. Remove the water separating fuel filter from the engine. Empty the fuel
into a suitable container and discard the filter properly.
4. Premix the following in a container:
• 8 cc (0.27 oz) or two teaspoons of Mercury Precision Quickleen
lubricant.
• 8 cc (0.27 oz) or two teaspoons of Mercury Precision Fuel Stabilizer.
5. Pour this mixture in a new water separating fuel filter. Install the fuel filter.
6. Prime the fuel system as outlined in Operation ‑ Starting the Engine.
7. Place the outboard in water or use the flushing attachment for circulating
cooling water. Start the engine and run at idle speed for 10 minutes to
allow the treated fuel to fill the fuel system.
eng
STORAGE
NOTICE
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