Honda BF75A Owner's Manual page 127

6. Install the engine cover and LOCK
the FIXING LEVER securely (see
page 46 ).
Attempt to start the engine.
7.
If the engine fails to start, remove
the spark plugs, clean and dry the
electrodes, then reinstall the spark
plugs and attempt to start the
engine again.
If there was water in the engine
crankcase, or the used engine oil
showed signs of water
contamination, then a second
engine oil change should be
performed after running the engine
for 1/2 hour.
If the engine starts, and no
mechanical damage is evident,
continue to run the engine for 1/2
hour or longer (be sure the water
level is at least 100 mm (4 in)
above the anticavitation plate).
8. As soon as possible, take the motor
to a Honda outboard motor dealer
for inspection and service.
MAINTENANCE
127