2008 Arctic Cat 400/500/650/700 ATV Service Manual, Page 152Get this manual
Joining Crankcase Halves
1Verify that the two alignment pins are in place and that both case halves are clean and grease freeApply Three Bond Sealant to the mating surfacesPlace the right-side half onto the left-side half
4From the left side, install the remaining crankcase cap screws; then tighten only until snugNOTE: Rotate the shafts back and forth to ensure no binding or sticking occurs while tightening the cap screws