Scooter soaks in the gas release again (Spin Ge 50)

Hello together, I hope someone could help me here, because I really don’t know any more. So it’s about my 2-stroke Spin Ge 50. Since there was a lot of things in a bad condition, I renewed many parts: Cylinder & Piston, ZK including cable and plug, carburettor, suction socket, membrane block, air filter, petrol & vacuum hose, gas pull, (rest is irrelevant) and also of course the suitable seals. At the first start I of course set the carburettor like this, The Spin Ge 50 has a 47.5 HD by default, but since I have a Leovince TT Pott, I decided on a 52 HD. Let’s get to the problem. All parts that have been renewed are therefore no tuning parts or anything else. The carburettor can be set so far, so that the scooter does not run out, but as soon as you give a bit of gas the scooter drains. After a few adjustments I still had to fix This means smaller HD, but the previous owner, had a 66 HD in the carburettor and the scooter ran with deer brown ZK. To make the mixture a bit leaner, I then took off the air filter to see how this affects the running behaviour, but even worse the scooter goes out even faster when the gas is pumping out. Okay air filter again and try to stick the snorkel to the air filter in half. And look, the scooter is running better at once. It can be turned higher at the gas and doesn’t go out. And that’s what confuses me here, the less air the fatter also the mixture or am I wrong there?? So I thought to myself ok helmet compartment on it and test drive, but as soon as you sit on it and creates the scooter proud 5 km/h and then drains off again I’m not an expert and hope someone can help me here Greeting Jan