About two years ago I was given a free 7,000 watt BlackMax generator that had been submerged in a flooded RV park. The owner figured it was junk as the Honda GX390 engine block was cracked in two places from water freezing in it after the flooding subsided.
Took it home and tore it apart, yep the crankcase was split in two places. Went to the Honda parts web site and looked up all the parts I needed to repair it, crankcase, gaskets, bearings, piston rings, etc. Total was only ~$150, and I also needed the battery charger board and rubber receptacle covers, so total parts were about $200.
I cleaned everything up and put it back together, it started right up and ran like a champ. I load tested it, and it was putting out full rated power.
Saturday morning at 1:30AM the power went out because of an ice storm in out area. Figured it would be back on soon, but after looking at the NIPSCO outage map, I knew it would be a day or so until we got power again. Picked the generator up with the Kubota and brought it up to the house, fired it up and plugged it in, and had power for everything in the house. Shut it down, checked the oil and topped off the fuel a couple of times and it ran until 4:00PM Sunday afternoon.
Worth every penny I have in it.