Have a Keeway Ry6.Erschaft according to Tacho 55 Km/h. Have not had so much experience with the part. Drivetrain is all original. Have used today the nice weather to drive. I noticed the following when I want to ride with it so for example in the city at the next intersection right turn off then brake I to about 20-25 Km/h put down into the curve and still before the vertex, I tear the gas grip fully on but the time which passes until then until it noticeably what might be wrong Vario,coupling spring,coupling pad I have no idea but I also don’t want to burn senseless money with things that don’t work. The second problem uphill I come in at 55 it was only a short but strong climb but I was suddenly at 30Km/h according to Tacho which is so real 25 Km/h (for my feeling too little speed) I don’t weigh 100kg now but that was so real off shitted on the mountain.What’s not right there or you have to live with so scooters simply that it is so.It came afterwards also a less steep piece for usually the engine recovers, which was not the case but or is the already missing compression engine has only 9000km run original from pensioners. What must you do to make it bearable to drive the part?