hy first of all. I get the carburettor at my hyosung sf50 simply not set. Purified it is complete, gasoline filter in between. the scooter runs so far, it is on the straight so loud tacho 54km/h. But as soon as I turn the mixture grape out also a little bit and try to drive off she dies but. turn it back completely in he runs.. Then have put the needle first around a notch to the top, no change so far, but I had the feeling he pulls better you rch. today I took the carburetor again and checked everything clean, the needle set again by a notch higher (is now at the top of thin) and again tried to set it up is not possible. what can it be, whereby I have the feeling that she pulls so best.