[hogcowboy]

That sounds like the needle valve isn't functioning for whatever reason. That means a complete carburator cleaning. But didn't you do that when you changed the float? You might as well anytime you open the carb. It just takes a tiny piece of junk, rust or grit or sludge, to keep that tiny valve from working properly. So you should have got a complete carb rebuild kit if you went to the trouble of changing the float. Chances are good then that the float was not your problem but is a stuck float valve. You'll have to remove the carb and use compressed air and carb cleaner. Some times it's just easier to replace the carb. But it only takes a tiny piece of something to keep that pin from working properly. The real mechanics will be along to help further I'm sure.

 

[hogcowboy]

(Assuming the float height and fuel level are set correctly)

I did make that assumption might wrong to do. So the question then is, did you adjust the float height at all? If so then lower it a tad. (tad = a little) English being the confusing language that it is.