ok so i finally managed to track down a flywheel puller and pulled the flywheel this morning  the case seal looks mint  im going to change it on monday when the bearing store opens but it looks like this is not my problem   ive looked the manifold over but will check it again this afternoon   im scared to spray brake clean because the bike is reving so high it  sounds like its going to grenade and i really cant afford to fix it if it blows up