2006-2012 Honda TRX90 TRX90EX/X Service Manual, Page 227Get this manual
REAR WHEELBRAKESUSPENSION Measure the brake drum I.DSERVICE LIMIT: 141 mm (5.6 in)
Inspect the brake drum for scoringcracks and out of roundness
Check the rear wheel hub spl ines for wear or damage
DUST SEAL REPLACEMENT
BRAKE DRUM COVER
Remove the dust seal from the brake drum coverInstall the new dust seal into the brake drum cover using the special tool as shownTOOLS: