[G.M.]

Take 2- 20 or 22 gauge pieces of sheet metal about 1" wide and 2-1/2"s long, bend a tab up about 1/2"" long up at a 90 on one end of the metal.This tab will allow you to hold the metal to install it. Loosen the manifold and slip the long end in over the heat riser holes and tighten. This way you can easly remove them. It sounds like the float is sinking and the needle valve is open. A sticky needle valve will also leave to much gas in the bowl. Check and make sure the float don't have a hole in it, this lets gas inside of the float and it sinks letting the needle valve open. G.M.