13 Angola throttle screw size

8.9 mm. Throttle is a controllable valve that controls air to enter the engine. After the air enters the trachea, it is mixed with gasoline to form a combustible mixture, and the combustion is successful. It connects the air filter and the engine block, and is called the throat of the automobile engine. Throttle screw thread diameter is 9.5-0. 152, middle diameter is 8.9 mm, model 3/8-32unef.