Honda BF20A-BF25A, BF25D-BF30D Outboard Motors Shop Manual., Page 418Get this manual
HONDA BF25A
IN THE WATER
OUTBOARD MOTOR INSTALLATION Check that there are no water leaks from the motor mounting bolt holesMake sure that there is no propeller ventilation in straight lineThere is the possibility of some propeller ventilation when turning at full throttle with the motor trimmed out
AFTER SEA TRIALS
CHECK 81CLEAN THE OUTBOARD MOTOR
Check that there is no water in the gear oil
D Check for balanced weight distribution in the boatOUTBOARD MOTOR OPERATION
0 check the choke for proper operation