Good advice. I had to mess with the fuel sediment bowl more than I care to remember on my old 8N. Loved that tractor but had a heck of a time keeping it going. Spent more time tinkering than doing tractor work.You may want to take your carburetor back of and remove the fuel bowl. Check to see if there is any rust paste in it. Will almost look like a fine light brown sand. If so clean out all of your carburetor passages again. Also check your fuel sediment bowl and see if there is any rust paste in there.