Speedfight 2 lc after start he runs short and then he goes out

hey, I had a little bit damaged on the gas train and then I tried to fix it, it also went on but it was only clockwise so at first only 5-10 kmh got really funny to drive, but after 1-2 min everything went reasonably normal again. Leave a short scooter, turn it on again and then the same again. Then I turned it off again and then he didn’t go home at all. Then I ordered a new carburetor, of course built in etc. nu n he went after felt 100 kicks times and ran so about 5-10 seconds then he goes out again, then I have to kick again about 5 times and then the same, at the stand gas I screw already all the time around does not really what, mixture setting I took over from the old carburettor. Hope me someone can help ^^ MfG