Where is the throttle of the motorcycle?

I'm not sure if you want to ask about throttle valve, throttle valve or mixed gas screw. The throttle valve is in the carburetor. If it is a plunger carburetor, the cylinder with a slender oil needle under it is pulled by the throttle pipe. You can see it by unscrewing the upper cover of the carburetor. If it is a vacuum carburetor, it is just a round cover above and a rubber bowl below. The throttle valve looks like a plunger carburetor. But the throttle has nothing to do with running-in.

There is also an air door on the carburetor, which is conducive to adding rich mixture to start during cold start. The mixture screw of carburetor is responsible for adjusting the ratio of air to gasoline, that is, the concentration ratio of mixture. Usually brass screws, because of different models and different positions.