Yamaha Outboard Motors Factory Service Manual F6 and F8, Page 242Get this manual
THERMOSTAT, TIMING BELT AND GEARS REMOVING THE TIMING BELT
Remove: Timing belt 1
Turn the drive gear and align the "1" mark on the driven gear and "" mark on the thermostat housing cover (portin
REMOVING THE DRIVE GEAR
Remove: Drive gear nut
Crankshaft holder: YB-0656190890-06561