Does anyone know what kind of carb they used in the D36? I've not seen one like this and suspect it may have been unique to the D30/D36. The fuel pump diaphragm and gasket seem to be unobtanium, but amazingly when I checked my small stash of inventory I bought out from an ace hardware store, I happened to have one diaphragm and 2 gaskets for it. Just missing the metering diaphragm 55067. Unlike the other diaphragm and gasket, it matches the number for the diaphragm in the flatback. I hope I don't have to buy a whole flatback kit just for that diaphragm. Anyways, the problem is that the saw seems to be stupid rich, and doesn't seem to respond to adjustment. I really can't think of anything but the carb that would cause that.
http://www.arboristsite.com/chainsaw/234023.htm