Got this saw awhile back, and did not notice muffler was all but falling off. On the bright side piston looks great! Anyhow there is a heat shield, pieces of gasket then muffler. Question is do I need 1 or 2 gaskets? Guessing 1, heat shield against cylinder, metal to metal, and gasket in between heat shield and muffler, hence muffler gasket and not heat shield gasket.