I think I have fixed the bike, at least I hope it's fixed. After much research trawling the internet, sifting out the shit rubbish that is talked on various forums I came to the conclusion that it was the shift motor to blame. I found it strange that an electric motor could be such a pain in the arse and cause the problem but I managed to get one off the bay and fitted it today. Took the bike out and drove 60 miles or so not sparing it any and doing a lot of needless gearshifts to work the motor hard using auto and manual, normal drive and sport 3 (is there any other mode but 3? ) and it perf