If you choose to accomplish adjustments on your own Aprilia Pegaso 650 Trail then it will always be a good plan to have access to a Workshop Manual to keep just for a reference should you need to know how you can remove a particular part for example Drive Shaft and fit it again the right way.
Aprilia Pegaso 650 Trail Workshop Manuals will give unique diagnostic guides for your vehicle therefore if something is broken it will help you find out what the situation is and ways to make it better. Then you are able to evaluate if this can be achieved yourself or in case the job is simply too big you can still book your Pegaso 650 Trail right into a nearby mechanic.
Aprilia Pegaso 650 Trail manual