If you wish to execute adjustments on your own Hyosung X 125D then it will always be recommended to possess a Workshop Manual for reference if you want to know easy methods to take out a certain part such as the Gearbox and install it again effectively.
Hyosung X 125D Workshop Manuals can provide targeted diagnostic wisdom with regards to your car or truck therefore if something is broken it will help you work out what the issue is and the way to make it better. You will be able to analyse if this can be done yourself or in case the job is too big you can actually make a booking for your X 125D in to a suitable car garage.
Hyosung X 125D manual