I checked and re-positioned the intake pipe, unplugged and replugged all the electrical contacts I had removed. Removed the dizzy cap and cleaned up the contacts then soaked it in WD40. Reseated the battery clamps and prayed to all the popular deities ...
... turned the key, and low and behold, SHE FIRED UP! She seems to run ok without any issues

There was a small leak from the water pump; I did remove it yesterday to check the impeller was ok. But I drove it to GSF to get a new seal, but by the time I got there, the leak had stopped. I drove round a load more and let it run on the driveway for 5 mins, but no leaky - so maybe the rubber seal needed to reseat itself....But I'll keep an eye on it.
After driving it for 5 minutes though - it was totally worth putting in a few hours labour
