Nice looking machine! When I get to the frame on this one, I know there's going to be some welding to be done - there's been some previous frame breaks/bad re-welds, as well as some rusted holes that need to be addressed, plus some much needed paint. In the end, I'm hoping to get this thing to approximately 75% new-looking. Now that I think about it, I believe you are correct kellymac - on that PentanPartsUsa site there was an exploded diagram of the main case clutch/crank with that lever extending into the clutch pack. Off the top of my head I wondered if it was that de-compression lever I've heard about, used to kick-start bikes easier - but no, it must be clutch-related.