2001-2003 Honda TRX500FA Factory Service Manual, Page 64Get this manual
MAINTENANCE
REAR FINAL GEAR CASE OIL AND DIFFERENTIAL OIL
FINAL GEAR CASE OIL
LEVEL CHECK
Place he ve hicle on level surfaceRem ove the oil check bolt and check that he oil fl ows
out of the chec bolt ho leCheck for leaks if there is no oi flow
CHECK BOLT
Remove the oil ill er cap and pou the il slowly through he ill er hole unt il the oil sta rts to fl ow out of the check bolt holeRECOMMENDED OIL: Hypoid gear oil SA #80 Install the ch eck bo lt ith new sealing asher and