This machine was my daily rider from new until I accidentally dropped a plastic seal into the cam chain tunnel while checking the tappet clearances.  When I hit the starter button to position the cams for checking, that seal, rather than breaking up,  instead lifted the chain and jumped the valve timing.  Then engine stopped abruptly, so the head will have to be removed to check for bent valves.  I no longer have a shop to work on it, so I'm selling it for $200.