Because it hasn't been mentioned in this topic yet, guzzitek.org.
https://guzzitek.org/
The site contains an enormous amount of documentation for Moto Guzzi bikes.
Navigation there takes a bit of getting used to, so here are some more direct links
Owner's manual (scroll down to find the link to the V11 stuff...)
https://guzzitek.org/f/utilisation_f.htm#gb
Parts list (once again, scroll down...)
https://guzzitek.org/f/parts_list_f.htm#gb
Workshop manual (yes, once again, scroll down...)
https://guzzitek.org/f/atelier_f.htm#gb