I have a 1948 Farmall Cub that has supposedly been sitting since around 2016 and I've been trying to get the engine to start and run but it will not start. Also the entire time it was sitting the fuel tank was completely empty and the carburetor was drained, but there was fuel in the bowl under the tank which I immediately dumped before trying to do anything. The problem I'm having is the engine turns over nicely and then it'll almost start and then the stater disengages and the engine doesn't start. I changed the spark plugs cleaned the cap and rotor and then checked the spark and it was a very bright blue, and then I changed the fuel filter. I'm thinking its a carburetor issue but I don't get why it'd have a problem if it was sitting without fuel in it the whole time. I don't know what else to do except for rebuild the carb but I'd rather not unless I have to.