I started the mower and it ran great. The next time I attempted to start it ,it spewed white smoke and gas started running out of the carburetor. I took the carb off and cleaned it, reinstalled it. it started up fine, ran rough but then straightened out. Shut it off and started it but gas started coming out again as before. Anyone have any suggestions. Also I cannot find a manual anywhere. The model is a 917.287013 with a 15 horse engine. Is it possible the spring in the pin could be shot, that makes the gas come from the tank?
