Honda WH15XT Manual De Explicaciones página 31

OPERATION
3.Turn the fuel valve lever to the OFF position.
FUEL VALVE LEVER
OFF
OFF
After use, remove the pump drain plug (see page 42), and drain the
pump chamber. Remove the priming water filler cap, and flush the
pump chamber with clean, fresh water. Allow the water to drain from
the pump chamber, and then reinstall the filler cap and drain plug.
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