If you have to do adjustments for your Honda XR 125 L then it will always be recommended to have a Workshop Manual to keep just for personal reference in the event you need to know how you can strip off a particular component for example the Wheel and fit it again adequately.
Honda XR 125 L Workshop Manuals gives you certain diagnostic guidelines for your automobile so if something is not working it can help you work out what the issue is and ways to resolve it. You can then decide if this can be achieved on your own or if ever the job is too big you could make a reservation for your XR 125 L in to a trusted garage.
Honda XR 125 L manual