If you choose to conduct auto repairs to your Yamaha TT R125L then it will always be recommended to possess a Workshop Manual for reference should you want to know the way to take out a certain part for example Brake Discs and match it again successfully.
Yamaha TT R125L Workshop Manuals provide you with certain diagnostic details for the automobile therefore if something is playing up it will help you discover what the problem is and how to repair it. You will be able to evaluate if this can be achieved by yourself or that the job is too big you could book your TT R125L right into a trusted repair garage.
Yamaha TT R125L manual