Good afternoon, this is my 3rd article, which I write about this because I am really desperate. My Piaggio Runner 50dd ran without any problems until it brings no more power at once. Jumping up it does without problems, stand gas runs perfectly. If I drive very carefully and slowly or give gas the scooter drives up to about 35-40km/h, after that he wants to choke off. If I give a little faster gas on one time he also wants to strangle directly. My only explanation is that the Ro The carburettor has also been cleaned 3 times and works perfectly. I just checked Variomatics and everything is running. The exhaust is also not clogged or anything else. I looked at the carburettor clean and I could not see anything there. Please urgently for advice, I need the scooter greeting and thank you in advance to all the help!