E Choke broken?

Servus. I changed my gas train now and actually the scooter runs really well. I don’t know if it’s because it’s ass cold but the scooter runs too fat and has misfired at full speed and that hardly comes from the spot. I then played a little bit at the carburetor yesterday and drove a lap and he really ran very well. Today he already has this problem again but no matter how the carburetor is adjusted he doesn’t want to decide himself