Ken of “Ken’s Small Engine Repair” found this listing. It was listed as two Generac GP6500e generators with bad engines. One has no compression and the other is stuck. Are the junk or can they be saved?

Generator Model#: 0059413 GP6500e
Rollover Valve: 00715040J7921
Battery: Mightymax ML9-12
Air Cleaner: 0G8442C111
Battery Charger 0G5744
(Used Sopbost 1000mA battery charger)
Needle: Stens 525-554
Generator Handle: Gentent Folding Handle Kit
Fuel Valve: Panari Fuel Shutoff Valve for GP6500e