If you choose to undertake fixes to your KTM 125 Enduro Sport then it will always be recommended to own a Workshop Manual for reference in case that you want to know proven methods to take off a certain component like the Brake Pads and install it again accordingly.
KTM 125 Enduro Sport Workshop Manuals offers you certain diagnostic info for your vehicle so if something is wrong it can help you discover what the issue is and ways to resolve it. Then you are able to analyse if this can be done on your own or that the job is just too big you can book your 125 Enduro Sport into a trusted garage.
KTM 125 Enduro Sport manual