2001-2005 Honda TRX250EX Sportrax TRX250EX Factory Service Manual, Page 248Get this manual
REAR DRIVING MECHANISM BEARING INSPECTION Turn the inner race of each bearing in the gear case and case cover with your fingerThe bearings should turn smoothly and quietlyAlso check that the bearing outer race fits tightly in the case or coverFor ring gear case and case cover bearing replace-
ment, see page 16- 11For pinion gear removal and bearing replacement, see page 16-10
GEAR TOOTH CONTACT PATTERN CHECK
Keep dust and dlft our of the ClJS8 and
Clean sealing material off the mating surfaces of the gear case and cover, being careful not to damage
themApply thin coat of Prussian Blue to the pinion gear