- Honda Water Pump WP20X, WP30X Owner's Manual

STORAGE
STORAGE PREPARATION
Proper storage preparation is essential for keeping your pump
troublefree and looking good. The following steps will help to keep
rust and corrosion from impairing your pump’s function and
appearance, and will make the engine easier to start when you use the
pump again.
Cleaning
1. Wash the engine and pump.
Wash the engine by hand, and be careful to prevent water from
entering the air cleaner or muffler opening. Keep water away from
controls and
all other places that are difficult to dry, as water
promotes rust.
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Using a garden hose or pressure washing equipment can force
water into the air cleaner or muffler opening. Water in the air
cleaner will soak the air filter, and water that passes through the
air filter or muffler can enter the cylinder, causing damage.
Water contacting a hot engine can cause damage. If the engine
has been running, allow
it to cool for at least half an hour before
washing.
2. Wipe dry all accessible surfaces.
3. Fill the pump chamber with clean, fresh water, start the engine
outdoors, and
let it run until it reaches normal operating
temperature to evaporate any external water.
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Dry operation will damage the pump seal. Be sure the pump
chamber is filled with water before starting the engine.
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