There was some oil on the engine and I am trying to make sure I know where it is coming from. The tach oil seal is definitely leaking, but I also found oil on the fins near the points cover and on the bottom of the points cover itself. Could this simply be run-off from the tach oil seal leak dripping down the left side due to the bike being on its side stand? The manual says there is no gasket on the valve cover, so I don't think it would be fruitful to pull it off.