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Mercury 20 User Manual

Mercury 20
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STORAGE
58
Protecting Internal Engine Components
NOTE: Make sure the fuel system has been prepared for storage. Refer to Fuel System, preceeding.
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.
Rotate the flywheel manually several times to distribute the storage seal in the cylinder. Reinstall spark
plug.
Gearcase
Drain and refill the gearcase lubricant (refer to Maintenance ‑ Gearcase Lubrication).
Positioning Outboard For Storage
Store outboard in an upright (vertical) position to allow water to drain out of outboard.
!
CAUTION
If outboard is stored tilted up in freezing temperature, trapped cooling water or rain water that may have
entered the propeller exhaust outlet in the gearcase could freeze and cause damage to the outboard.
Battery Storage
Follow the battery manufacturer's instructions for storage and recharging.
Remove the battery from the boat and check water level. Recharge if necessary.
Store the battery in a cool, dry place.
Periodically check the water level and recharge the battery during storage.

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Mercury 20 Specifications

General IconGeneral
BrandMercury
Model20
CategoryOutboard Motor
LanguageEnglish

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