Moto Guzzi V700, V7 Special, Ambassador, 850 GT, 850 GT California, Eldorado, and 850 California Police models
I extracted this information from Jim Carey off of the old Yahoo! Loopframe_Guzzi news group (which has now moved to Groups.io). In Jim's own words:
I saw on this site a couple weeks back a clever idea for a gas tank spit. My Eldo tank has sprung a couple pin holes! So its time to strip it, weld it up and then seal it. So it seemed like a good idea to make up a spit for working on the tank.
1 inch square tubing, cast iron gas line fittings, a 3⁄8 inch diameter rod and an old water valve handle. I made it up into three parts to knock it down when not in use. Gas line fittings with a lock bolt threaded into theTto tighten it to the shaft and a stop on the frame to secure the shaft in place.