If you have to execute adjustments to your Hyosung RX 125D SM then it is always recommended to have a Workshop Manual to use as personal reference in the event you want to know tips on how to remove a particular part for example, the Door and fit it again correctly.
Hyosung RX 125D SM Workshop Manuals offers you exact diagnostic info for your automobile so if something is faulty it can help you understand what the situation is and the way to correct it. After that you can analyse if this can be done yourself or if the job is too big you are able to make a reservation for your RX 125D SM right into a decent mechanic.
Hyosung RX 125D SM manual