Well, I was having some odd burning symptoms so I thought it was my fuel pick up tube being clogged. Ran through the whole lamp, cleaned everything out and the lamp re-lit and ran about 30 minutes before going out. No fuel was coming out of the vaporizer so I decided to try to take it apart. Everything was stuck solid. Was eventually able to get the vaporizer out of the brass part that sits on it, but it took a lot of kroil and patience. The vaporizer is very swollen and sadly no longer usable. Is there a source for 169 vaporizers?
