Got an up draft carb so that could have saved the engine. I would check for spark. If there is none those parts are darn expensive and don't always solve the problem. Been there - done that & solde it a parts unit..
The engine is a TRA12 Wisconsin.
They were available with both mag coil and 12 volt battery coil. They are points engines. If the coil is bad a coil swap takes about 10 minutes. Cleaning the point's is a 10 minute job too.
I have the parts,that's no issue. With 20 plus engines laying around that are not in tractors. And if worse comes to worse I have another TRA that can go in the tractor.
I have a feeling your tractor had a cast iron Tecumseh with their solid state ignition system.
I'm good with that too.
I work with a lot of Sears Suburbans with cast iron Tecumseh engines. So not only are several tractors here with those engines but I also have several cast iron Tecumseh OH and HH engines sitting around and spare SSI ignition units,carbs,etc.
Another note. Seldom does a SSI unit go bad. People just don't know how to clean and service them.
95 percent of the time a proper clean and service of the SSI system will fix you right up.
Most of the time people would just rather call them bad and be done with them. Just like a cast iron Briggs with a mag coil and points,a K series cast iron Kohler with its 12 volt coil and points if you will just clean and service the ignition system you are usually good to go.
But you have to be familiar with the particular ignition system and how to clean and check air gaps etc. These are very simple and reliable systems as long as you know how to maintenance them.
If you are not get pdf manuals. They will help you a ton.
