Update Time
Right then, faffed around with starter motor related experiments for a while then put the bike to one side for a bit. A nice Gasgas owner got in touch having seen this thread and we threw a few ideas around.
I was convinced the starter motor was turning the wrong way and in the end it seems it was. I had two starters that came with the bike both turning the same way. I found another at a breakers but that turned the same way. Then I found another at a breakers and it turned the opposite way. Bolted it on and she fired right up!
Unfortunately runs like a dog and burns loads of oil...
Link here
https://flic.kr/p/2m8WF8m
A friend I showed this to thought HG as it looks like white smoke but I'm sure it is burning oil. Next step I guess is to do a compression test and see if I can figure out the problem. It would be easy to give up but I feel I should keep going now I have solved the starting issue!
Cheers