2002-2006 Yamaha YFR450FAR Service Manual LIT-11616-16-01, Page 247Get this manual
FRONT CONSTANT VELOCITY JOINTS AND DIFFERENTIAL GEAR DRIV
CHECKING THE GEAR MOTOR 1.Check: Gear motor Checking steps: Connect two size batteries to the gear motor terminals 1(as shown illustration)
CAUTION:
Do not use 12 battery to operate the pinion gear Check that the pinion gear turns counterclockwise Check that the pinion gear turns clockwise