Cleaning a carburetor is an important step in preventative maintenance on cars, trucks, motorcycles, and small engines. The procedure can often be done when the carburetor is still on the engine, but when the carb is particularly dirty or in need of other repairs, it might be more sensible to remove the carb from the engine. The process of cleaning a carburetor is safe when performed correctly, but you will need to take steps to prevent damage or the possibility of a serious fire.