2004-2009 Honda TRX450R/TRX450ER Service Manual, Page 288Get this manual
CLUTCHSTARTER CLUTCHKICK STARTERGEARSHIFT LINKAGE (After '05) Check the ratchet pawls, plungers and drum shifter for wear or damageCheck the plunger spring for fatigue or damageRATCHET PAWL
DRUM SHIFTER
PLUNGER