Right, been helping a friend with his ERST today. Got it all timed up and went to start it...nothing. Turning over but doesn't want to fire.

We've got spark, but i'm not sure about fuel. The fuel pump doesn't prime, yet when bridging the wires it makes noise but sounds a bit weak.
After turning it over for a couple of seconds there seems to be no pressure in the fuel lines??

Been faffing round with it for a few hours now and my brain is fried! so thought I would give up today and see what people might think it is.

cheers.