Good evening, my son owns a Speedfight 3 AC 50, about 2 years old and 9000km running. On Thursday he stayed with the part, because the scooter did not run faster than 23km/h (20km remaining way home). He describes it below: -1km straight piece after school driven with about 60 -then turned right and accelerated, at about 50km/h loud noise from the Vario. (As if a propeller plane flew over it) -stopped and tried to drive at 23km/h funny noise, a kind of squeaking from the Vario – the Vario cover was extremely hot and it slightly crackled like a hot exhaust (coupling?) I then dismantled the lid and immediately noticed the strongly blue tapped clutch bell. Vario weights are ok, then ordered a new clutch with converter + bell and installed today and the scooter turns up to 6500u/min at ~32km/h then wants to “turn” but then turns over 7000 and does not accelerate any more. Where could the d A few days before, a squeaky from the Vario already noticed that only happened when I started. Can you give me some tips where I could still start? The scooter is not tinkered, but runs on the straight 70 things. He drives 2x 17km to school every day. Has been immediately throttled by the dealer. Happy Saturday evening I wish you!