Thanks guys. some interesting suggestions here. I never considered tps settings so may go down that road in the winter. For now I think I'll settle with a new battery, earth's and widen the gaps on the plugs.
Also the fuel issues, as I do have a plastic tank this makes me very nervous!
I posted a video on youtube of her starting this morning. Today she has been behaving much better. makes it all the more frustrating.....Anyway link below if anyone has the time to listen for a couple of mins. Left it running to hear the engine throbbing until it got to temp
https://youtu.be/8BS60Vi9WyY
Also batteries. what is recommended?
cheers