2007 Arctic Cat Four-Stroke Factory Service Manual, Page 280Get this manual
6Turn the gas tank shut-off valve to the CLOSED position; then disconnect the fuel hose from the carburetor ! WARNING
Whenever any maintenance or inspection is made on fuel system when there may be fuel leakage, there should be no welding, smoking, open flames, etc in the area
7Remove the vent hose from the top of the gas tank
2Remove the screw securing the choke knob to the cable; then remove the knob