2004-2005 Honda TRX450R Factory Sevice Manual, Page 209Get this manual
CRANKCASETRANSMISSIONCRANKSHAFTBALANCER Check th shift ork shaft for abn rmal wea damageMeasure each sh ift for sh aft 0.0SERVICE LIMITS: Left and rig ht: 11.97 mm (0.471 in)
Ce nte r: 10.97 mm (O.432 in)
Check the shift forks fo abnormal wear damageMeasure the of each shift fo rk.0SERV ICE LIM ITS:
left nd right: 12.04 mrn (0.474 in) Cente r: 11.04 mm (0.43 in)