If you wish to execute repairs for your BSA A 65 Lightning then it will always be a great idea to own a Workshop Manual to use as a reference in the event you need to know methods to take off a certain part like the Brake Discs and install it again effectively.
BSA A 65 Lightning Workshop Manuals will provide you with targeted diagnostic information with regards to your vehicle therefore if something is not working it will help you discover what the situation is and ways to fix it. After that you can determine if you can do this yourself or if the job is simply too big you could book your A 65 Lightning right into a trusted mechanic.
BSA A 65 Lightning manual