Two-stroke motorcycle full throttle flameout experts come in.

(1) Be sure to open the choke valve; Off state, in fact, "on" means that the damper blocks the main air passage of the carburetor under the action of the handle, and the "off" state is the opposite.

(2) The true meaning of "driving with the choke closed" means that the gasoline concentration is too low and the carburetor throttle oil must be adjusted.

Needle, in order to increase the opening of the oil inlet.

(3) The front oil circuit of the carburetor may be partially blocked, and the small hole next to the key of the oil storage tank may be blocked.

(4) It has nothing to do with other reasons such as ignition. Because you have started it, it is only affected by the damper. )