Free Motorcycle Manuals for download . Lots of people charge for motorcycle service and workshop manuals online which is a bit cheeky I reckon as they are freely available all over the internet. £5 each online or download them in PDF format for free here!!. View and Download APRILIA PEGASO 650 STRADA service station manual online. PEGASO 650 STRADA Motorcycle pdf manual download.. I live in San Francisco and have been riding since about 18 years old, 63 now. Used to have a Yamaha Vision and in my frequent trips to mechanic to fix the stator, I saw a Nighthawk S and thought it would be a good choice with similar engine size and shaft drive..