If you choose to perform adjustments on your Norton T T then it is always a great idea to have access to a Workshop Manual for a guide if perhaps you need to know methods to take off a particular component for example, the Gearbox and fit it again effectively.
Norton T T Workshop Manuals will provide you with specific diagnostic facts with regards to your automobile so if something is playing up it will help you ascertain what the problem is and some ways to make it better. You can then decide if this can be achieved yourself or in the event the job is just too big you can still make a booking for your T T right into a trusted garage.
Norton T T manual