depends on the particular burner. a two pipe fuel system will self bleed after a couple of tries. single pipe supply may blead itself if you try it 3 or 4 times if not then the fuel pump needs bleeding. most pumps will have a screw marked with a 'v'. if you undo this the fuel should come after a few moments. if you ran bone dry you may have to blead fuel through supply line filter as well.don't fiddle with pump though, you can do more harm than good.
mr doo, January 2009
