I oiled up the pump leather, used the fuel cap from my 500 stove. Put on a mantle I have. Probably to small. Put fuel in it and it fired right up.
Then I had to tighten the packing nut on the cleaning lever. It now doesn't leak and still turns properly and it will shut off the fuel supply so i figure it is working.
Now to get some fuel cap gaskets for these small caps.
Randy