Scooter does not accept stationary gas

Hi guys, my scooter didn’t start anymore, so I removed and cleaned the carburettor, tested the battery including e-choke, new spark plug and the membrane plates, because the old ones don’t close properly. Now the scooter jumped again, took gas but goes out immediately without giving gas again and that even though I had completely screwed in the stand gas. The scooter did not show any reaction to the stand gas setting. It only runs when I give additional gas, comes a I don’t know what it could be.