If you want to accomplish auto repairs to your Ducati 999 R then it is usually a good plan to own a Workshop Manual to keep just for a guide in the event that you need to know how you can take out a specific component including Clutch and fit it again in the correct way.
Ducati 999 R Workshop Manuals will give precise diagnostic facts with regards to your car so if something is playing up it can help you work out what the issue is and tips to correct it. You will be able to assess if this can be achieved by yourself or if the job is just too big you can make a booking for your 999 R in to a decent garage.
Ducati 999 R manual