If you want to carry out adjustments to your Honda XR 650 R then it is usually a great idea to own a Workshop Manual to use as personal reference if perhaps you want to know the best way to take off a certain part much like the Clutch and match it again in the correct manner.
Honda XR 650 R Workshop Manuals will provide you with certain diagnostic facts for the car therefore if something is not working it helps you understand what the problem is and tips to correct it. Then you are able to analyse if this can be done on your own or in case the job is simply too big you can actually make a reservation for your XR 650 R in with a decent mechanic.
Honda XR 650 R manual