If you have to carry out maintenance to your KTM 990 Superduke Black then it will always be recommended to have access to a Workshop Manual to keep just for a guide in case you want to know ways to take off a particular component like the Drive Shaft and match it again perfectly.
KTM 990 Superduke Black Workshop Manuals will provide you with exact diagnostic info with regards to your car or truck therefore if something is faulty it helps you determine what the problem is and the way to fix it. You will be able to evaluate if you can do this by yourself or in case the job is just too big you could make a reservation for your 990 Superduke Black in to a decent mechanic.
KTM 990 Superduke Black manual