2008 Arctic Cat ThunderCat ATV Service Manual, Page 47Get this manual
4Loosely install the two nuts securing the cylinder to the crankcaseNOTE: The two cylinder-to-crankcase nuts will be tightened in step 10
7Place the head gasket into position on the cylinderPlace the alignment pins into position; then place the head assembly into position on the cylinder while guiding the cam chain through the cylinder head
8Install the four cylinder head cap screws with washersTighten only until snug