2008 Arctic Cat ATVs factory service and repair manual, Page 294Get this manual
9Remove the rotorlflywheel key; then remove the starter driven gear 10Remove the pivot bolt from the cam chain tensioner; then remove the cam chain tensioner and cam chainAccount for washer
12 Using an impact driver and appropriate Phillips-head bit, remove the three cap screws securing the oil pump and remove the oil pump
Remove the snap ring (1) from the oil pump shaft; then remove the oil pump driven gear (2) and drive chain (3)Account for the oil pump drive pin (4) and washer (5)