1990-1998 Arctic Cat Snowmobiles Repair Manual, Page 351Get this manual
DRIVE SYSTEM
aInsert pivot screw (A, Figure 44) through the attaching lug from the direction shownbIf equipped with two washers, install one of the washers on the edge of the screw (B, Figure 44), then position the cam arm weight and second washer between the mounting lugs and push through the pivot screwcIf equipped with the clip shown in Figure 34, position the clip around the weightPosition the clip and weight between the mounting lugs and push through the pivot screwCAUTION Always install new self-locking nuts as described in substep 1dDo not install the old nuts