That would be very helpful John, thank you. My assumption thus far is that the lever is unique to the Saturno. However, a friend of mine, who is a much more experienced motorcycle engineer, has suggested that it may be possible to use temporarily a lever off another Italian lightweight of that era. Given the development path of the Saturno I'm sceptical and not sure how to research that idea. I think I'll start by contacting and visiting a few specialist Italian dealers such as North Leicester Motorcycles, the Morini people. Thanks again for getting involved in my self inflicted Saturno woes!