28-02-13, 11:54 PM
Just a follow up. The carbs were well out of adjustment for some reason and the bike is running normally again. The mystery noise has not been back.... Not sure what it was, it was there for a couple of weeks and disappeared on it's own just before I took it in to get the carbs sorted. It's gone now and not annoying me any longer in any case. Thanks again for all the advice guys.