How to adjust the valve of scooter? It's boring to refuel after the cold car starts. Restart 2. Only three times. How to adjust?

If the cold car is easy to start, but it does not speed up after starting, it is not necessarily the problem of valve clearance. You can check whether the electronically controlled throttle of the carburetor is thickened badly. In addition, it is normal that the engine burns badly when it is cold, and it is impossible to add oil. At this time, increasing the throttle will cause serious wear. Therefore, it is best not to warm up at a low speed with a small throttle for a while after the cold car starts.

To adjust the valve of the scooter, first remove the seat and its lower cargo box, cylinder head cover or valve cover, fan cover or timing inspection hole cover, and align the T point on the magneto rotor with the mark on the engine housing. At this time, the dot on the timing sprocket should be straight ahead, the "-"line on the timing sprocket should be parallel to the cylinder head plane, and the two valve rocker arms should be in a relaxed state. Then, check the valve clearance, which is relatively large for scooters.

Valve adjustment must be carried out by people with professional maintenance experience, and some special tools are needed. Don't adjust it yourself if you can't repair the car. The video linked below is to explain the valve mechanism of scooter, for your reference.