2007 Arctic Cat ATVs 400/500/650/700 Service Manual, Page 284Get this manual
6Place the chain guide into the cylinder ! CAUTION
Care should be taken that the bottom of the chain guide is secured in the crankcase boss
9Loosely install the five cylinder head nuts
7Place the head gasket into position on the cylinderPlace the alignment pins into position; then place the head assembly into position on the cylinder