The only manual I was able to find for my '02 XT600 is the Yamaha one. Certainly, Haynes and Clymer don't see fit to publish one. In the end I spent 33 quid on the authorised version. It's a huge wadge of photocopying, but having said that it is very comprehensive. It includes updates for 1991 and 1995. As far as I have been able to establish, this is the most recent update. Good luck!