2000 Arctic Cat ATV Factory Service Manual, Page 119Get this manual
Fig3-385
Fig3-388
3Install the starter idle gear pin into the crankcase; then with the beveled side of the idle gear facing the crankcase, install the idle gearFig3-386
6In turn on the driveshaft, install the #1 gear and splined washer; then secure with the circlipFig3-389