A little background. I bought this about 15 years ago. I might even have had an account on this site at the time. Anyways..
1990 MJ 4.0 5 speed. About 190k on it. I did some of the mods recommended here such as cooling system, it also has an nv3550 TJ trans and clutch set up and some other odds and ends.
Due to a job that involved a lot of traveling, I parked it. I would be home about every 8 weeks and would at least start it and drive it a bit. Stopped doing that around 5 years ago and it sat.
Last year tried starting it, cranked it over after charging the battery, but wouldn't fire.
It was popping back through the throttle body.
So I'm gifting it to a friend she towed it to a shop to have it checked out. They haven't got to it yet.
Bad gas maybe?
Any ideas would be appreciated.