Where to use (Application) choke valves, choke controls, Throttle body Directions for use Shake can well before use. Remove air filter and intake hose. With engine off spray into the throttle body area and throttle body valve blade. Start engine spray on valve throttle plate areas in air passages, air jets & seats of adjusting screws. Race engine lightly to flush away deposits and to smooth out idle. Replace air filter and connect air intake hose. Best result are obtained when material is at room temperature. Higher temperature increases the pressure in the can & lower temperature reduces the pressure. What does it do ? has a unique carbon release formula that penetrates, loosens and flushes away vanish, oil and gum deposit from throttle body. Precaution: Do not expose to heat, protect from direct sunlight & do not expose to temperature exceeding 500c. For skin contact wash with mild soap & water. If swallowed do not induce vomiting seek medical attention immediately.