If you want to do maintenance for your KTM 450 MXC USA then it will always be a great idea to own a Workshop Manual to keep just for personal reference if you want to know how to remove a particular part much like the Door and install it again appropriately.
KTM 450 MXC USA Workshop Manuals offers clear detailed diagnostic information on your vehicle therefore if something is not working it helps you discover what the problem is and how you can correct it. After that you can decide if this can be achieved by yourself or if the job is just too big you are able to make a booking for your 450 MXC USA into a local car garage.
KTM 450 MXC USA manual