2004-2005 Honda TRX450R Factory Sevice Manual, Page 191Get this manual
CLUTCHKICKSTARTERGEARSHIFT LINKAGE INSPECTION Check the gearshift spindle for wear or damageCheck the spindle plate for wear, damage or defer-
mation Check the return spring for fatigue or damage
RETURN SPRING
Check the ratchet pawls, plungers and drum shifter for wear or damageCheck the plunger spring for fatigue or damage
RATCHET PAWL
DRUM SHIFTER