I want to repair my Lombard Super Lightning. I saw an old post about this problem, but not sure about the parts or what to buy. My saw smokes like a mosquito fogger, and has as long as I can remember. I have the IPL, need to see what part to fix. (Happy to share IPL if anyone is interested in it.) I'd like to know what parts to buy, and guidance on the repair. It's some kind of a check valve I think. I have newer saws now to use for fire wood, but this is the first saw my Dad bought, in August 1978. We used it a lot, and I'd like to get it going and use it again. It runs ok, I've started and run it, but the smoke cloud makes it pretty unpleasant to be around. It's heavy, but it always worked well for us, and we cut a lot of fire wood with it for many years. Any help and information would be much appreciated.