update, this engine has been fighting me all the way, new stator now fitted and all is fine, I have found a thin spacer left out but every thing seems ok. I fitted a new 20 tooth sprocket and when tightened it locked up, after stripping gearbox a few times plus other investigating, it was the sprocket 40 thou oversize on the first flange into the bearing/seal. it also locks up when tightening the kick start ratchet nut. after a lot of searching I am lost so was told to nip it up and lock the tabs, now waiting for the barrel to arrive.
I am putting this in an A10 frame and had a great day today and sorted the crossover of the rear brake over to the right side, making a new shaft and converting some Bsa and triumph brake parts., I will put some pics up soon, although it is a dry build first. thanks for everyones input.
