If you need to conduct adjustments on your own Jawa 650 Classic then it is usually a great idea to have access to a Workshop Manual to keep just for personal reference just in case you need to know the best way to take off a particular part including Drive Shaft and match it again successfully.
Jawa 650 Classic Workshop Manuals provides targeted diagnostic wisdom with regards to your car therefore if something is broken it will help you understand what the issue is and how you can resolve it. Then you are able to analyse if this can be achieved yourself or in the event the job is just too big you can still book your 650 Classic right into a local car garage.
Jawa 650 Classic manual