If you want to undertake fixes on your own MZ Classic 300 then it is always recommended to own a Workshop Manual to keep just for a guide if you want to know simple methods to take off a particular part much like the Drive Shaft and match it again safely.
MZ Classic 300 Workshop Manuals provides certain diagnostic facts for the automobile therefore if something is not working it can help you figure out what the issue is and tips on how to correct it. You will be able to analyse if you can do this yourself or in the event the job is just too big it is possible to book your Classic 300 right into a local garage.
MZ Classic 300 manual