If you want to perform maintenance tasks on your own TGB Hawk 125 then it will always be a good plan to possess a Workshop Manual to keep just for personal reference if you need to know tips to take off a particular part for example the Clutch and match it again appropriately.
TGB Hawk 125 Workshop Manuals can provide particular diagnostic facts for your car so if something is playing up it will help you discover what the problem is and how you can resolve it. After that you can determine if this can be done by yourself or in the event the job is simply too big you could book your Hawk 125 into a nearby repair garage.
TGB Hawk 125 manual