One day I pulled into the garage and shut off the engine. I didn't turn the gas off right away and noticed gas running out the overflow hose. I know this is most likely the needle valve so I decided to rebuilt the carb ( original on this bike). Before I rebuilt the carb I started it up again just to see if it was still leaking. Now the engine won't run unless the enricher is pulled out. After it warms up I can push it in part way and it runs slower but rough. Pull it out and it runs good but fast. Push it all the way in and the engine stops. So I rebuilt the carb. New needle valve, new gaskets and O rings, new accelerator pump diaphram, new carb to manifold seal. cleaned it up good blew out all the jets. I did not take out the manifold. I put it back together. The carb is not leaking anymore but it still won't run unless the enricher is out. Anyone know what this might be?