2008 Arctic Cat 366 ATV Service Manual, Page 16Get this manual
Adjusting Throttle Cable To adjust the throttle cable free-play, follow this procedure1Slide the rubber boot away; then loosen the jam nut from the throttle cable adjuster
2Turn the idle adjustment screw clockwise one turn past the recommended RPM setting; then turn it counterclockwise to 1250-1350 RPM
! WARNING
Adjust the idle to the correct RPMMake sure the engine is at normal operating temperature before adjusting the idle RPM
2Turn the adjuster until the throttle cable has proper free-play of 3-6 mm (18-14 in at the lever