Picked up this stove at a car show yesterday. I had a preway model 401 quite some time ago. However sadly, I was a teenager and I busted the thing and scrapped it. I know better now, and as soon as I saw another wedgie for sale, I was right on top of it. Got this bad boy for ten bones even though the price sticker said 20. I brought it home, oiled the pump cup, poured some gas in and lit it up. The fuel valve turned real hard, and it bound up occasionally. She also flooded pretty bad. Once it was hot it ran well. Lit it two or three times. Then I took the generator apart and cleaned all the hard carbonized gunk out. Now, the knobs turn freely. I even had to tighten up the packing on the fuel valve a bit. I'm still getting some strange behavior out of the fuel valve like it's partially clogging up. I can hear stuff rattling in the tank so I know it needs a good cleaning. The other issue is that the tank loses pressure over night. Any hints on checking out the NRV and finding a replacement gasket for where the pump tube seals in the fuel fill opening? I haven't had much luck finding any parts just yet. Thanks in advance.