Vespa owners manuals had a wealth of useful information on each of the scooters. They included basic controls, minor service information, wiring diagrams, as well as technical information. Sadly, most of these manuals were separated from the scooters and lost, or worse, left in the glovebox to become covered in grease and oil. Over the years, I have collected many of the original owners manuals covering many of the models sold in the U.S.

GS 160 MK II (No Battery) Manual - Written In Italian - Courtesy of RidingMachine.com
>Download - PDF Format - 8.23 Mb

The Book of the Vespa GS and SS - by John Thorpe - Courtesy of RidingMachine.com
>Download - PDF Format - 20.00 Mb