If you wish to do auto repairs on your own BSA SR 500 Gold then it is usually a great idea to have access to a Workshop Manual for a reference in case that you need to know simple methods to take off a certain component such as the Gearbox and install it again successfully.
BSA SR 500 Gold Workshop Manuals are able to offer certain diagnostic info on your vehicle therefore if something is not working it can help you find out what the issue is and tips to make it better. You will be able to analyse if you can do this on your own or in the event the job is too big you are able to make a booking for your SR 500 Gold into a local garage.
BSA SR 500 Gold manual