Ok, I've done some searching on here, and haven't seen anything that really answers my question. I have what I believe is a 72 CT70H. It at the very least is a 4 speed. My issue is, at higher RPM the bike cuts out and loses power. I have pulled the flywheel to make sure the mechanical timing advance is moving freely, and found something I think is very strange. The cam that I think should only have two notches for the "paws", has two extra notches, 90 degrees off from the factory notches. This is where the "paws" are sitting. I tried putting everything back to what looked like the factory location, and it won't run at all. I tried turning it 180 from that position, and nothing. The only way I can get it to run, is what looks to be 90 degrees from the factory setting. It idles and runs flawlessly at lower speeds, but spits and sputters at higher RPM. Does anyone have any ideas why this thing should even run the way it is? Or am I completely wrong about the extra two notches?