I have acquired yet another Primus 210 stove. For some reason the previous owner installed an o-ring at the burner cap and also at the pump cap. They were removed immediately. The stove had some fuel in it and I topped it off and fired it. I should have emptied the fuel as it isn't burning the best and hence is not worthy of a flame shot as of yet. The stove did leak at the base of the burner at the tank when pressurized. I cleaned the threads and added some copper anti-seize to it that appears to have repaired it. I believe that it had some gunk on the threads that wasn't allowing it to seat fully. Best of all this stove came with documentation ! The paperwork appears to be for a model 100 stove but it is still in very good condition for a it's age. I have added it with the pictures. This is the first one that has come with any paperwork (even if it is for another model stove lol). Once I have it all cleaned up I'll post it in the reference library.