1985-1986 Honda ATC250R Shop Manual, Page 172Get this manual
REAR WHEELDRIVE MECHANISM '85: Install the caliper mount plateInstall the snap ring with its "OUT SIDE" mark facing out and with its ends positioned as shownInstall the rear axle (Page 11-7)Install the rear wheels (page 11-3)Adjust the drive chain (Page 2-10)CALIPER MOUNT PLATE