2006-2009 Honda TRX680 (TRX 680 FA-FGA) Factory Service Manual, Page 261Get this manual
SUB-TRANSMISSION GEARSHIFT LINKAGE
SUB-TRANSMISSION
DISASSEMBLY
Remove the rear cra nkcase cover (page 12-5)
Remove the following :
washer idle qear (25T) gea shaft and gear co ll ar {i nner and outer)
idle gear (16T)
The output shaft can be removed at th is time page
Remove the follow ing: