Engine's back together, timed up and re shimmed. Had a club mate come round and help me put it in so that's done too. Did some temp connections and went to start it up and... whoops left the carby drain screws out! So I was swimming in fuel once I put on the tank and turned the key... LOL guess it was a bit late in the evening for my brain. Called it a night at that point. Might try again tomorrow!