2010 Arctic Cat DVX 300 / 300 Utility ATV Service Manual, Page 74Get this manual
3Tighten the jam nut against the throttle cable adjuster securely; then slide the rubber boot over the adjuster Engine RPM (Idle)
To properly adjust the idle RPM, tachometer is necessaryTo adjust idle RPM, use the following procedureNOTE: The idle adjustment screw is located on the right side of the carburetorKM327A
6Remove the vent hose; then remove the gas tankCLEANING AND INSPECTING
NOTE: Whenever part is worn excessively, cracked, or damaged in any way, replacement is necessary
1With the transmission in neutral, start the engine and warm it up to normal operating temperature2Turn the idle adjustment screw clockwise one turn past the recommended RPM setting; then turn it counterclockwise to the correct setting of 1250-1350 RPM
! WARNING
Adjust the idle to the correct RPMMake sure the engine is at normal operating temperature before adjusting the idle RPM
1Clean all gas tank components with parts-cleaning solvent2Inspect all hoses for cracks or leaks3Inspect gas tank valve, tank cap, and tank for leaks, holes, and damaged threads4Inspect the gas gauge for proper operationINSTALLING 1Place the gas tank into position on the frame; then install the cap screwsTighten securely