If you have to accomplish adjustments on your own Moto Guzzi Centauro then it is always recommended to have access to a Workshop Manual to keep just for a reference if perhaps you want to know how you can take out a particular part much like the Exhaust and match it again perfectly.
Moto Guzzi Centauro Workshop Manuals will provide you with precise diagnostic information on your car or truck so if something is broken it helps you discover what the situation is and how to make it better. Then you are able to assess if this can be done yourself or in case the job is too big you can book your Centauro into a trusted garage.
Moto Guzzi Centauro manual