Many internal combustion engines have carburetors, from automobiles to boats to airplanes. They are especially prevalent in small engines like lawn mowers, rototillers, and other equipment. A dirty carburetor can cause many performance issues with your equipment, like backfiring, overheating, hard starting, or even loss of power. CRC makes keep your carburetor clean an easy task, with CRC Clean-R-Carb™ Carburetor Cleaner.