Do you think it is worth repairing an old J.I. CASE 2390 tractor? It's a 1981 model. I have the opportunity to buy it almost for free. Or should I give it up?
It depends on what you're going to use it for. Anything can be repaired, but I don't know if you can make a profit from it. You are going to fix it and then resell it, am I right? I've looked at the technical specifications of this tractor https://www.tractor-specs.net/j-i-case-tractors, all the spare parts can be easily found on sale and the tractor can be repaired.