If you have to do maintenance tasks on your own Gilera RCR 50 then it is always a great idea to own a Workshop Manual for a reference if perhaps you need to know easy methods to take out a particular part like the Exhaust and match it again appropriately.
Gilera RCR 50 Workshop Manuals provides particular diagnostic guidelines for the automobile so if something is wrong it helps you understand what the situation is and ways to resolve it. After that you can decide if this can be done by yourself or in case the job is just too big you can make a booking for your RCR 50 in to a trusted mechanic.
Gilera RCR 50 manual