Hi, can you give me a tip? My Speedfight 3 AC (20k km, Bj 09) does quite a bit of trouble. Jumps very well and stand gas runs well. When I give gas it kicks in at 5000 revolutions and the speed drops again. So it does not pick up any gas. Stand gas continues to run well. Before that he drove at least a few minutes until the power broke in and at most 20 km/h were in it. Now he doesn’t drive at all. Compression is too low with 3-4 bar. Membrane and a new one Cylinder kit has already been installed. I suspect the problem with the engine – too little pressure is set up. Which components are still in question, Simmerrings and engine housing seal? Vario side no oil runs out. Lima side everything is so dirty that you can’t recognize it (have not yet a Polradabschreiber). I read you can hold a lighter in front of the Simmerrings and then kick it on? Do you have ideas what it can be? Thank you & Greetings