If you want to do maintenance on your KTM 125 EXC SIXDAYS then it is usually recommended to have access to a Workshop Manual to keep just for a reference just in case you want to know simple methods to take out a specific component for example the Clutch and fit it again successfully.
KTM 125 EXC SIXDAYS Workshop Manuals provide you with special diagnostic guides with regards to your car therefore if something is playing up it helps you ascertain what the problem is and easy methods to repair it. Then you are able to assess if this can be done by yourself or if ever the job is too big you could make a booking for your 125 EXC SIXDAYS into a trusted repair garage.
KTM 125 EXC SIXDAYS manual