If you have to perform maintenance tasks on your own KTM 620 Duke then it will always be a good plan to possess a Workshop Manual to keep just for reference if you want to know easy methods to strip off a certain component for example Door and match it again efficiently.
KTM 620 Duke Workshop Manuals will give particular diagnostic wisdom for the vehicle therefore if something is wrong it will help you figure out what the situation is and how to repair it. After that you can decide if this can be achieved by yourself or if the job is simply too big you could make a booking for your 620 Duke in with a nearby car garage.
KTM 620 Duke manual