So I hit the 4th weekend, and the news is......
It Lives!
I changed out the oil, it had been over filled, I just filled it again with cheap oil, ready for a new filter and oil change when it goes in for the MoT. I fitted new NGK plug caps, and amazingly, it still had the original factory plug caps fitted, so I have kept these back in case anyone is restoring a Z1b and wants to fit the propper caps.
Next I fitted a new fuel tap, and checked everything for leaks, then full choke, power on, two kicks and away she went. big clouds of smoke from where she has been standing, I think the bores had been oiled too, a bit of a rattle as the oil circulated, and then it settled down fine.

Now it is firing up instantly on the button, so the MoT is getting closer.
Lastly I fitted a nw smaller plate, as the old one was a bit on the large side, but then again so am I
