Tractor Question

I have a 49 8N. Mine got like that and I went through the carburetor and that fixed it right up. BUt before I put it back on, I removed the fuel tank, flushed it out and put in a new sediment bowl....cause mine was really nasty and I also added an electric fuel cut off solenoid. Those down drafts are bad about letting fuel just drip through them even in good shape. What I found with mine was, those really small holes in the main jet can get clogged. You need to clean them out with something like a welding tip cleaner. That's what I ues. It works good.