2006 Arctic Cat ATVs 400/400TBX/400TRV/500/500TBX/500TRV/650H1/650 V-Twin Service Manual, Page 378Get this manual

2006 Arctic Cat ATVs 400/400TBX/400TRV/500/500TBX/500TRV/650H1/650 V-Twin Service Manual, Page 378

12Inspect the carburetor mounting flange for damage and tightness 2Loosen the jam nut (B); then rotate the adjuster (C) to
attainedTighten the jam nut against the adjuster; 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-hand side of the carburetor 1Start the engine and warm it up to operating temperature 2Turn the idle
adjustment screw clockwise or counterclockwise until the engine idles at recommended RPM ! WARNING ATV-0047 Adjust the idle
to the correct RPMMake sure the engine is fully warm before adjusting the idle RPMEngine Idle RPM 400500650 H1 650 V-Twin