Hello, first I would like to apologize to start a new topic, but I couldn’t find a suitable solution in the forum and am really desperate. I drive an ATU scooter (please don’t blame it all), Explorer Kallio 50 New Edition Built 2013, KM-Stand 12,000km (2-stroke). So far it ran without major problems and very reliable, but it hasn’t been running properly for about 1 month. Setup: – Naraku CDI (open) – Naraku Vario with currently 5g weights – Varioring removed – Naraku Belts – Naraku Sportkupplung – 70s HD – Sport Auspuff TurboKit Rest unchanged With this setup it ran wonderful until about 1 month ago. The following problem occurs both during rides, as well as on the main stand. Problem cold: Starts easily, but runs slightly unevenly. Motor turns high to the middle speed range when you give gas, stutters and smokes white. Does not reach the full speed, has almost no suit, could be of a 2. Per After a longer full throttle (10 sec or more) and stutters, it slowly turns higher, but still stutters slightly, reaches max 40km, significantly less on incline. Problem warm: It also starts without problems, runs slightly unevenly, but overall a little better, no more squirting. Speed is only stuttering at both partial and full throttle to the middle speed range, but has more power than cold. At some point, the speed at full throttle is slowly higher, läu In the meantime, when driving full throttle, light “force dropouts”, as if you suddenly had headwind. After a long full throttle ride, the suit is better off the stand, but this changes again after a short service life at a traffic light. Max speed as usual on a straight distance approx. 60km/h, only to reach this is an agony, it rides like throttled. The following was tested/repaired: – Air filter (tested) – Fuel, air and vacuum pipes (tested) – Zü NGK – Ignition plug and cable (changed) NGK – Carburettor (cleaned) – Simmerring Vario-side (changed) – Vario, belts, coupling (tested) Since I have to travel 50km daily and I am dependent on the scooter I would be very grateful for ideas and help.