This has been stored around 15 years.

https://dallas.craigslist.org/mdf/bar/d/burleson-wwii-generator/7512899963.html

“WWII 1940’s. Willys Jeep Flathead 4 cylinder generator.
Been sitting in a barn for 15yrs +
I just pulled it out of the barn 2 days ago
It runs, it generates power as it should
Been sitting for all these years, so you know it will need some work, I’ve already spent the time to make sure everything works but it will need.
Spark plug wires
2 tires
Gas tank either cleaned or replaced, recommend replacement
Asking $1,000 obo
Will entertain trades but cash is king but not required. Text me only pls”