Hi Gene, I have used ACF 50 to combat the corrosion and to lubricate, but in that environment, the rust still seems to thrive. I suppose that the rust had already gotten hold in the early days, prior to lubrication. Perhaps Guzzi should apply some at the factory?
NO company applies anything that costs money. It is a matter of learning what should have been done for the next time. I don't know if the spark plug tubes aer removable so they can be replaced or repainted.
What is ACF 50 ?