I think I may of found the problem. So I've taken the engine apart to clean and it all seems fine then I came to the carburetor, I took it apart to clean and I unscrewed the two screws (I'm not sure what there for) and one of them practically just fell out and I went to put it all back together and I could not screw that screw back in so I looked at the thread and well there isn't one! Could this be the problem?
I'm thinking because it was lose, could be letting to much air into the engine?