If you want to undertake auto repairs on your own Benelli 666 then it is usually recommended to have a Workshop Manual for reference just in case you want to know simple methods to remove a specific component for instance the Brake Pads and fit it again adequately.
Benelli 666 Workshop Manuals are able to offer targeted diagnostic guidelines for your automobile so if something is not working it can help you figure out what the problem is and ways to repair it. Then you are able to analyse if this can be achieved yourself or in the event the job is simply too big you can make a booking for your 666 in to a nearby repair garage.
Benelli 666 manual