There's a black plastic plug under the recoil starter. Have to pull off the recoil and remove the plug.
Align the straight line with the notch under the plastic plug. There's a large H mark( /---/ ) then another mark ( / ) right after the H on the rotor. The one after the H is the one you want.
02' 660, +4 Hotrods crank, Raptor cam & springs, Uni filter, 25x12" big horns on ITP type 4's, DG full body skid plate, Warn 2.5 in front.