How to repair the throttle line of children's toy car?

1. Put the throttle line through the upper cover of the carburetor, put the spring around the throttle line, then extend the throttle line out of the throttle hole, pull it out of the next groove and all the way to the end, and release the head of the throttle line from the groove at the bottom of the throttle; 2. When installing the throttle valve into the carburetor, pay attention to that the inclined plane of the throttle valve is small, facing the idle screw, and the long slot is facing the bump in the carburetor, falling to the bottom, and then tighten the cover. Both lines of the motorcycle lead to the throttle handle on the right side of the handlebar. Above is the throttle line, which is responsible for controlling the throttle and oil needle, and on the side is the acceleration pump line. When the throttle turns sharply, the carburetor can spray a stream of oil to the throat, which improves the acceleration when accelerating sharply.