Hello motor-talk community! I recently bought my first scooter. Among other things as a small craft project. It is a Baotian BT49QT-9 scooter. First a few infos and then the two problems. The info: I bought the scooter defective and repaired the “obvious”. New spark plug, new suction nozzle, new carburetor. Before the repair the scooter ran restlessly and drove at most 15 km/h. After the repair it ran round and faster again. after the instructions I have set from the following video: https://www.youtube.com/watch?v=oWwNpNWZPqY The problems: 1. The scooter drives despite full speed, not its 45 km/h. Mountain descent it comes on a maximum of 40, on a normal track maximum of 30/35 and uphill (even at the smallest climb) it really tortures itself with 25/30 km/h. If I drive full speed and it can make just as much as 40 km/h (mostly remains below), come between by small “acceleration ranges”. If the scooter could drive faster, but it doesn’t most of the time. Did I set the carburetor wrong or can the problem have its origin elsewhere? I was thinking of old petrol or oil… Could the speedometer just be broken? The speedometer needle sometimes moves back and forth at higher speed, although I can’t make up any troubles for this movement (roller runs quietly, road is flat). 2. Speaking of Tacho: When I set the left turn signal, it lights up. on my speedometer not the blinker light. But some other light source next to it flashes slightly. The left flasher on the scooter light up quite normally. With the right blinker I don’t have the speedometer problem. There the flasher indicator lights up normally. I know that remote diagnostics are always difficult, but I don’t know where to start with the troubleshooting. If someone has ideas or suggestions about one of these two problems, I would be very grateful for it!