2008 Arctic Cat 400/500/650/700 ATV Service Manual, Page 161Get this manual
NOTE: Keep the mounting hardware with the covers for assembly purposes or thread them back into the head to keep them separated
3Loosen the cap screw on the end of the tensioner; then remove the two cap screws securing the tensioner adjuster assembly and remove the assemblyAccount for gasket
2Remove the 12 cap screws securing the valve cover to the head; account for the four rubber washers on the top side cap screwsRemove the valve coverAccount for and note the orientation of the cylinder head plugNote the location of two alignment pins