If you choose to undertake fixes on your Yamaha RD 200 then it will always be recommended to own a Workshop Manual to use as reference in the event that you want to know easy methods to take off a certain part much like the Brake Discs and install it again perfectly.
Yamaha RD 200 Workshop Manuals will provide you with special diagnostic facts for your car or truck therefore if something is playing up it can help you find out what the problem is and how you can make it better. You can then evaluate if you can do this yourself or in case the job is just too big you could make a reservation for your RD 200 in with a local garage.
Yamaha RD 200 manual