1999-2004 Honda TRX400EX FourTrax Service Manual, Page 146Get this manual
CRANKCASElTRANSMlSSlONlCRANKSHAFT Remove the gasket and dowel pins
TRANSMISSION
DISASSEMBLY
Separate the crankcase (page 11-3)Pull the gearshift plate away from the shift drum and remove the gearshift spindle
Pull the shift fork shaft out of the left crankcase and shift forksRemove the shift forks and shift drum