2008 Arctic Cat 400/500/650/700 ATV Service Manual, Page 243Get this manual
CPrimary Drive Clutch Shoe DPrimary Driven Clutch EPrimary Drive Clutch Housing
NOTE: Steps 1-6 in the preceding sub-section must precede this procedure
9Remove the release plateAccount for four springs10Remove the primary drive clutch-shoe nut (left-hand threads) and washer from the driveshaft; then using primary clutch shoe remover, remove the clutch shoe
7Remove the reverse cam stopper housing and gasket and account for stopper and spring
! CAUTION
Care must be taken when removing the nut; it has "left-hand" threads