Honda BF9.9A-BF15A Outboard Motors Shop Manual., Page 81Get this manual
PISTON RING Install the rings with the marking facing upBe careful not to interchange the top and second ringsAfter installation, be sure that the rings rotate freely in the piston grooveStagger the ring end gaps 120' apartDo not align with the piston pin or thrust sides MARK
SECOND RING
OIL RING
BALANCER DRIVE GEAR
REMOVAL:
Make mark on the crankshaft and balancer drive gearSet the commercially available bearing puller under the balancer drive gear and drive out the gear using hydraulic press