1999-2004 Honda TRX400EX FourTrax Service Manual, Page 138Get this manual
ALTERNATORSTARTER CLUTCH Remove the flywheel using the special tool
TOOL Rotor puller
07733- 0020001or 07933 3950000 [U.S.Aonly)
Remove the 3.7 mm washer and starter drive gear
Remove the needle bearing, spacer anu woooruff key