Honda BF9.9A-BF15A Outboard Motors Shop Manual., Page 50Get this manual
FLYWHEEL FLYWHEEL DISASSEMBLY:
Remove the flywheel with the special tool
16 mm SPECIAL NUT DISASSEMBLY:
Hold the flywheel with the pulley holder (special tool) and remove the nut
REASSEMBLY:
Apply oil to the thread and seated surface of the nut and install it by hand, then hold the flywheel with the pulley holder and tighten the nut to specified torque
[-1FLYWHEEL
[2] -1ULLEY HOLDER .07925-8930000
REASSEMBLY:
Clean oil or dirt off the mating surface of the center hole before installation