Huhu, I finally built everything apart today and found what I suspected: a throttle in the suction socket! The carburetor has 19mm through. and the suction socket has 13.5mm, because they ideally have to have had equal amount of let through, I have to remove it. My question is now how can I get it out? Hammer? Or what should I do there? And since in my other thread the spirits have separated a supplementary question (only with yes/no please answer): I have to remove the mixing screw Stall gas screw and spark plug change/renew?? If yes how? if only approx. I am grateful for any helpful answer! thx and byebye