Honda BF8, BF9.9 and BF10 Outboard Motors Shop Manual., Page 407Get this manual
0 PROPELLER SELECTION Check the outboard motor speed under the users operating conditionOUTBOARD MOTOR SPEED: BF8D: 4500 5500 min-I (rpm) BF9.9DIBFlOD: 5000 6000 min-I (rpm) Make sure that there is no cavitation during turning BREAK-IN PROCEDURES
The outboard motor break-in should be performed as follows, although it is usually done during the trial runsFor the initial 15 minutes: Run the outboard motor at idling or trolling speeds {i.ethe lowest possible speed)For the next 30 minutes: Run the outboard motor at 2,0003,000 min-1(rpm) (with 10 30 of throttle)For the next to the second 60 minutes: Run the outboard motor at 4,0005,000 min-' (rpm) (with 5080 of throttle)For the initial 10 hours: Avoid continuous full throttle (100 throttle) operation for more than minutes-