If you choose to perform auto repairs for your KTM 400 SX Racing then it is usually a good plan to possess a Workshop Manual for reference if perhaps you need to know tips on how to take off a certain part for instance the Wheel and fit it again the right way.
KTM 400 SX Racing Workshop Manuals will give special diagnostic guidelines on your vehicle so if something is not working it helps you ascertain what the problem is and how to repair it. You can then determine if this can be done on your own or if ever the job is simply too big it is possible to make a reservation for your 400 SX Racing in to a local friendly mechanic.
KTM 400 SX Racing manual