Thanks for the responses. Its single plate - based on the rattle in neutral - clutch out. I have been told by Mario at Thunder Bikes the noise on the single plate is actually from the gear box - probably doesn't matter its just Guzzi normal! As Scud suggested I was hoping to find some way of establishing if the flywheel has been updated. The idea for testing if its a steel RAM flywheel with a magnet or visually seeing the shape sounds the best starting point. My Tenni has 39,000 Km on it and the clutch performs without any signs of wear , vibration or noises so I expect it is fine. However at the Phillip Island Classic a couple of weeks ago I met the original owner of Tenni #4 and his flywheel started make noises and jamming in gear at 20,000km so the panics have set in. (His flywheel had radial cracking). About to set off on the Victorian Moto Guzzi Club tour of Tasmania - 2500 km of tight twisting tarmac and some dirt in a week. Tenni heaven.
