The Walbro rebuild kit (K10-HDB) includes thick and thin fuel pump gaskets along with a very thin diaphragm. The original diaphragm was a thin and rubberized and sealed directly against the carb body. The new one seems to be fiberglass. Does it get sandwiched between the two new gaskets? Even using the thin gasket on the carb side, it would stand off the diaphragm by its thickness and I don't know if the saw would run correctly. If i don't use the second gasket it doesn't seem like the diaphragm will seal directly against the carb body. I'd appreciate input to avoid doing the job over again.