If you have to perform maintenance tasks on your own KTM 990 Supermoto R then it will always be a good plan to have a Workshop Manual for reference if perhaps you need to know how you can strip off a specific part for example, the Door and fit it again correctly.
KTM 990 Supermoto R Workshop Manuals will give you precise diagnostic info with regards to your car therefore if something is faulty it helps you work out what the situation is and tips to make it better. Then you are able to determine if this can be done yourself or if the job is too big you can make a reservation for your 990 Supermoto R right into a trusted friendly mechanic.
KTM 990 Supermoto R manual