Hi, everybody! I recently bought a scooter. It ran 38000 km. The engine is running very well. However, it makes a bit of noise. It accelerates very well until about 25-30 km/h. Then it becomes very tough and it fights at about 35-40 km/h high and afterwards it accelerates very quickly until about 55-60. What might this be about? Have already checked the spark plug, it seems to be. The carburettor was also cleaned (which was not necessary at all) and is absolutely sa About. The exhaust is also free, so no cokes. Is it just a matter of attitude? And can anyone tell me the basic attitude of the carburetor? I’m a newcomer in the scooter area. Maybe someone would also have the patience to explain to me the operation of the power transmission? What are the weights? Questions about questions about this clarification I would be very grateful. A little brisker he should also like to be… Thank you in advance and many greetings!!