2001-2006 Honda TRX 300EX Sportrax 300EX Factory Service Manual, Page 183Get this manual
CRANKSHAFTITRANSMISSION SHIFT FORK SHAFT
Check the shift fork shaft lor damage or bendingM ellsure the shi ft fork shaft 0.0SERVice UMIT: 12.96 mm 0.510 inl
SHII" FORK SHAFT
SHIFT DRUM Remove the bolts and reverse gearshift drum bearing holder