If you have to perform maintenance for your Adly Thunder 125 then it will always be recommended to own a Workshop Manual for a reference in case that you need to know the best ways to strip off a certain component for example, the Clutch and install it again perfectly.
Adly Thunder 125 Workshop Manuals will give you specified diagnostic guidelines for the vehicle so if something is faulty it can help you ascertain what the problem is and the way to repair it. You will be able to decide if this can be done on your own or if ever the job is too big you can actually make a reservation for your Thunder 125 into a suitable car garage.
Adly Thunder 125 manual