So, what state-side, on-line store do you order your spare parts from? When I put 'Moto Guzzi parts' into Google, I get a lot of European web pages. I don't really want to pay overseas shipping for an $8.90 part.
I need to order the rear brake lever pin, Code 884033.
Back story. When I bought the bike about 2 months ago, the bike had been dropped and bent the rear brake lever and the pin too. I didn't realize the pin had been bent until I got the new lever and went to replace it. Went ahead and replaced it. Brakes work fine. But, the angle is off just enough that it no longer presses on the brake light micro-switch. My brake light was on all the time.
Short term fix, a couple layers of duct tape on the lever to press the micro-switch. Long term, get a new lever pin. And if that doesn't work, drill and tap for a set screw where I can adjust the depth right below the micro-switch.