If you want to carry out repairs to your TGB 303R 150 then it is always a great idea to possess a Workshop Manual to use as reference if perhaps you need to know the best way to strip off a certain component for instance the Drive Shaft and install it again appropriately.
TGB 303R 150 Workshop Manuals provide you with targeted diagnostic information for your vehicle therefore if something is wrong it can help you identify what the issue is and how to resolve it. You will be able to analyse if this can be achieved by yourself or if ever the job is too big you are able to book your 303R 150 into a local repair garage.
TGB 303R 150 manual