For what it is worth. I have converted at least six carburetors to fit various saws. It looked more difficult than it actually was. Basically by changing the butterfly rod with the butterfly. To start with one saw had the throttle cable attach differently than a another. So I just went through what I had and matched the rod and butterfly and adjusted. No problems. I have gathered up many saws over the years that have been run over or straight gas so I have lots of parts. Fleabay has always had available carburetors and kits cheap. Thanks