In business for over 90 years, Motorex is active in research, development and production of innovative lubricants and chemicals. Motorex products are used by top factory race teams worldwide, by independent pros, and by top amateurs who demand the best performance from their race machines. The complete Motorex line includes a broad range of synthetic engine oils, lubricants, aerosol sprays, cleaners and care products for motorcycles and ATVs. Cleans ports, intake valves, venturi tubes, seats of adjusting screws and carburetor bodies. Suited for all carburetor types. Tested with catalytic converters. Legal in all 50 states. Size: 500 ml aerosol spray can.