All Balls Racing – Carburetor Rebuild Kits - Arctic Cat, including kits for the 2003 500 FIS 4x4 with automatic transmission, the 00-02 500 4x4 w/AT, the 05-07 500 FIS 4x4 w/AT and the 04-05 500 FIS TRV 4x4. Every kit is matched to the carburetor variant fitted to that specific year and drivetrain combination, and includes the wear items that decide whether the machine runs right: float needle and seat, bowl gasket, o-rings, and the diaphragm and rubber components that stiffen with age and ethanol exposure. On these 500 singles the classic symptoms are a stumble just off closed throttle, an idle that climbs when the engine warms, fuel weeping past a hardened bowl gasket, and a machine that will not fire after winter storage. Renewing the whole fuel-metering side with an Arctic Cat carb rebuild kit brings back consistent low-speed pull for plowing and trail work, protects the piston from running lean, and keeps needle-and-seat trash out of the jets. Model variants split by transmission and emissions spec, so give us your year and exact model and we will confirm the right carburetor rebuild kit before you order.