2001-2003 Honda TRX500FA Factory Service Manual, Page 282Get this manual
FRONT DRIVING MECHANISM OPERATION CHECK Turn the pi nion gear and check hat the gear turns smoothly and quietly with out binding If the gears do no turn smoothly qui et ly, the gears ando beari ng ay be damaged or fau lty.They must be checked after disassembly; re place hem if neces sary
BACKLASH INSPECTION
Hold the pinion ge ar with the special toolsTOOLSPinion puller base
Assembly shaft Puller shaft Special nut Threaded Adapter
07HMC-MM80110 or 07HMCMM8011A (U.S.Aonly) 07965-VM00200
not available in U.S.A or
07931-ME4010B and 07931-HB3020A (U.S.Aonly) 07YMFHN4010A