Need help Tao tao Hellcat

[Hellcat Rider]

Hey guys need all your help my bike is acting up:(

So I was riding today perfectly fine when my bike just turned off and did not want to stay on if I didn’t give it gas even then it was running ruff and keept shutting off if I gave it no gas just at idle. Also I have a mikuni vm22.
Also when I went to see my carb it was really cold not even hot it even had water bubbles from being cold. Any help pls