HARD start when warm

Next time its fully warmed up, pop the air cleaner off. Grab a chair, a flashlight, and a beer. Shut it off, sit back and relax for 10 minutes. Keep one eye on the airhorn.If you see wisps of smoke coming out of there, you will have to figure out how to stop that. So first thing is to run over there, and shine the light down into the airhorn, and find out how the gas is getting into the manifold.
But if no smoke appears at all, then you probably dont have a fuel issue.