STP Carb Cleaner Spray for Carburettor 500ml Aerosol Easy To Use - STP 71500ENP Cleans carburettors, linkages and automatic chokes Fast acting and easy to use to formula Quickly removes gum, sludge, varnish, grease, dirt and... Easy to use, fast acting spray that can help maximise your engine's power, performance and efficency Cleans carburettors, linkages and automatic chokes Keeps carburettors in peak condition: regular use will prevent the build-up of harmful deposits.