I just brought a model 104 from Penn. to Florida, I was told it run when they put it up 15 years ago and had just put a new 12 horse engine on it instead of the 10 horse. I had to wait until the storm was out of here before I could do anything with it. After the rain stopped I flushed the tank changed the oil, and put a new battery in it and turned the starterpulled the choke and it started up and run perfect. I am thinking about getting rid of my new Craftsman or, keeping both. The only problem at all is the steering is a little loose, but that looks like the tie rod has a little play. This is a tractor I have always wanted to own.
Congradulations on your find. I do think I might try to restore mine or at least a new paint job.