If you wish to perform fixes to your Yamaha MT 01 then it is usually a great idea to have access to a Workshop Manual for reference if you need to know ways to take off a particular part for example Drive Shaft and fit it again in the right way.
Yamaha MT 01 Workshop Manuals provides targeted diagnostic details for the vehicle therefore if something is playing up it can help you identify what the issue is and the way to repair it. You will be able to analyse if this can be achieved by yourself or in the event the job is just too big you could make a booking for your MT 01 in with a nearby garage.
Yamaha MT 01 manual