How do you set idle on a arctic cat 400 quad 4x4?

To set the idle on an Arctic Cat 400 Quad 4x4, first, warm up the engine to operating temperature. Locate the idle adjustment screw, typically found on the carburetor or throttle body. Turn the screw clockwise to increase the idle speed or counterclockwise to decrease it, making small adjustments while monitoring the engine's idle. Finally, ensure the engine idles smoothly without stalling before securing the adjustment.