2007 Arctic Cat Four-Stroke Factory Service Manual, Page 134Get this manual
7Install the coil cover onto the valve cover and secure with the four mm cap screwsTighten only until snug
RemovingInstalling Spark Plugs (660 cc)
1Remove the four mm cap screws securing the coil cover to the valve cover738-478A
3Using 38 indrive ratchet, adapter, and 58 inspark plug socket, carefully remove the three spark plugs