Honda BF200A Owner's Manual page 103

6. Attempt to start the engine. Be sure
the water level is at least 2 inches
(5 cm) above the antiventilation
plate.
Running the outboard motor without
sufficient cooling water will damage
the water pump and overheat the
engine.
TAKING CARE OF UNEXPECTED PROBLEMS
If the engine fails to start, remove
the spark plugs and dry them, then
reinstall the spark plugs and
attempt to start the engine again.
If the engine starts, and no 
mechanical damage is evident, 
continue to run the engine for a half
hour or longer. Be sure the water
level is at least 2 inches (5 cm)
above the antiventilation plate to
avoid overheating and water pump
damage.
7. As soon as possible, take the 
outboard motor to an authorized
Honda Marine dealer for inspection
and service.
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