2009 Arctic Cat 150 ATV Service Manual, Page 19Get this manual
5Remove the nut securing the driven pulley; then remove the splined bushing, centrifugal clutch, pulley, and V-beltINSTALLING 1Using rubber mallet, spread the driven pulley sheaves by driving the V-belt down between the sheaves; then slide the driven pulley and V-belt into position
3Install the movable drive face onto the crankshaft making sure to "bottom" the sheave out against the center bushingThe crankshaft splines should be visible and the stepped washer should sit over the splines