right car went for mot and failed on the co had a play on the co machine and ajusted the fueling in the meateing head now the car wont start whats the set up procudure for the meatering head from scratch?

 

Not sure of the exact procedure but I'd screw it right in then turn it out one complete turn and try it then,see how it runs then either screw it out a bit more or in etc,they've only used trial and error,could then stick a gas analyser on it or get an rr tune to know it's perfect.