If you want to execute fixes for your Yamaha TT 600 R then it will always be a good plan to have a Workshop Manual to use as a guide just in case you need to know tips on how to strip off a certain component like the Exhaust and install it again perfectly.
Yamaha TT 600 R Workshop Manuals offers you particular diagnostic info with regards to your car therefore if something is wrong it will help you understand what the issue is and methods to repair it. You can then assess if this can be achieved on your own or in the event the job is just too big you can actually make a reservation for your TT 600 R in to a trusted car garage.
Yamaha TT 600 R manual