I just changed my main jet to a 260 and moved my jet needle to the 4th position. I took her out for a spin and it ran fine. The next time I went out I was riding it kinda hard and it kept wanting to cut out. It died, I got it restarted and had to go home in first gear and couldn't rev it very far without it cutting out. I let it sit for a bit and took off again and no problem. But then later on again it was cuttting out. Now it;s back to normal. Whats wrong? Could the float be stuck?

 

Sounds like a float problem, they sometimes have a mind of their own.