UPDATE - So I tore into the fuel line to investigate the screens and the screen in the tank was covered. I cleaned the screen and got the fuel flowing again. In the process I had the carb apart to clean it and I am afraid that I need to reset the jets because the tractor stumbles under a load now. So I fixed one problem but now have another one. I am sure someone has written on how to adjust the carb so, if possible, please point me in the right direction.