2006 Arctic Cat Y-6/Y-12 50cc and 90cc Service Manual, Page 79Get this manual
5Install the intermediate gear and the gear reduction case cover gasketAccount for the two dowel pins on the cover and install the cover using five Allen-head cap screwsTighten to specifications MD2071
7Slide the driven clutch assembly over the input shaft
NOTE: The two long cap screws are installed in the same holes as the dowel pins