Pity, I have plenty of head gaskets here and that is most likely the cause of the no starting. A thin blue spark is all you need. The fact you have fuel coming out the head gasket indicates it has a lung full of fuel and you need to leave the plug out and give it quite a few pulls to clear the fuel out. Not sure what sort of material you have down there to make a head gasket out of, just to see if this is the cause. You did check that the decomp valve was working, I can't remember if we discussed that earlier, bit of tube on it and give it a suck and the valve should close, if not it is not going to work
