Well that was quick Stephen!
Thanks. A lol for readers. Waiting for a sprocket from Talon UK, I had removed the chain. Bit later on, tried to start it for bloody hours! Then at burn it stage thoughts, I saw the front sprocket turn as I kicked it for the last time! It was in gear!
What a dickhead!
Put in neatral, and of course it started!
Grrrrrrrrrrrr