Honda BF9.9A Owner's Manual page 40

(Without water hose joint)
1. Wash the outside of the outboard
motor with clean, fresh water.
2. Remove the propeller.
3. Stand the motor in a suitable con-
tainer of water, The water level
must be at least 2 inches above
the anti-ventilation plate.
NOTE:
Maintain the water level at least 2
inches above the anti-ventilation
plate.
ANTI-VENTll.AFlON PLATE
4.Start the engine and run slowly
for at least 10 minutes.
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