1999-2004 Honda TRX400EX FourTrax Service Manual, Page 129Get this manual
CLUTCHlGEARSHlFT LINKAGE Install the lock washer with the "OUTSIDE" mark facing out
Apply oil to the threads and seating surface of new clutch center lock nut and install it onto the mainshaftHold the clutch center with the special tool and tighten the lock nut
TOOL Clutch center holder
07724-0050002or equivalent commercially available in A
TORQUE: 108 N.m (11.0 80 IbfW