If you wish to accomplish repairs for your Triumph Speedmaster then it will always be a good idea to own a Workshop Manual for reference should you need to know the best ways to strip off a particular component much like the Exhaust and fit it again successfully.
Triumph Speedmaster Workshop Manuals gives you targeted diagnostic guidelines for your car so if something is wrong it will help you understand what the issue is and how to resolve it. You can then determine if this can be achieved on your own or if the job is too big you can still make a reservation for your Speedmaster right into a nearby repair garage.
Triumph Speedmaster manual