If you choose to perform adjustments on your KTM 990 Superduke R then it is always a good idea to have a Workshop Manual to keep just for a guide in case that you want to know tips to strip off a specific part for example, the Door and install it again perfectly.
KTM 990 Superduke R Workshop Manuals gives you distinct diagnostic information for your car so if something is playing up it will help you work out what the problem is and how you can correct it. You can then determine if you can do this on your own or in case the job is just too big you could make a reservation for your 990 Superduke R right into a suitable mechanic.
KTM 990 Superduke R manual