2006 Arctic Cat ATVs 400/400TBX/400TRV/500/500TBX/500TRV/650H1/650 V-Twin Service Manual, Page 375Get this manual

2006 Arctic Cat ATVs 400/400TBX/400TRV/500/500TBX/500TRV/650H1/650 V-Twin Service Manual, Page 375

1Remove the vacuum chamber cover (A), spring (B), and vacuum piston (C); then remove the jet needle (D) and spring seat (E)
the float valve rod (D)The float valve spring (E) must not be compressedFloat height should be mm (0.16 in NOTE: Do not remove
the pilot screws unless idle problems have been encounteredIf pilot screws are removed, the carburetors will have to be synchronized
after installation (see Troubleshooting sub-section in this section) 3Remove set screw (A); then remove the float pivot pin
(B), float (C), needle valve, slow jet (D), and main jet (E) ATV2108 NOTE: Increasing the float height lowers the fuel level,