Honda TRX450R Service Manual page 272

CLUTCH/STARTER CLUTCH/KICK STARTER/GEARSHIFT LINKAGE (After '05)
Judder spring/spring seat
Check the judder spring and seat for damage or
warpage.
JUDDER SPRING
SPRING SEAT
Clutch center
Check the grooves of the clutch center for damage
or wear caused by the clutch plates.
Replace if necessary.
GROOVE
Clutch outer
Check the slots in the clutch outer for nicks, cuts or
indentations made by the clutch discs.
Check the primary driven gear teeth for wear or
damage.
Clutch outer guide/bearing
Check the clutch outer guide and needle bearing for
wear or damage.
SLOT
NEEDLE BEARING
PRIMARY
DRIVEN GEAR
OUTER GUIDE
14-10