If you have to accomplish maintenance tasks for your KTM 250 EXC SixDays then it is always recommended to own a Workshop Manual to use as reference if you need to know simple methods to remove a particular component for example the Wheel and fit it again safely.
KTM 250 EXC SixDays Workshop Manuals offers clear specified diagnostic information with regards to your car so if something is broken it helps you identify what the issue is and methods to fix it. After that you can analyse if this can be achieved yourself or if the job is simply too big it is possible to book your 250 EXC SixDays in to a local mechanic.
KTM 250 EXC SixDays manual