Well I have taken off the blade holder and it seems in good condition and the blades are fine too. The flywheel key appears to be in position but I couldn't get the flywheel off (I don't have a big enough puller) to really have a good inspection. I'm going to do the valves again as that seems to be the consensus. I adjusted the exhaust (top one) to 0.020mm and the inlet to 0.015mm. Is that correct?