CRC 05079 Clean-R-Carb Carburetor Cleaner - 12 Wt Oz. Quickly dissolves carburetor deposits such as gum, sludge and varnish to improve fuel system peformance Not VOC Compliant for California & OTC Enhances fuel economy Cleans and frees: Auto Chokes, Carb Linkage, Heat Risers, PCV Systems This item is not for sale in Catalina Island