RE: ys 45 help please
Should work unless something didn't get back together correctly. Sounds like you know what is going on.
Perhaps you should send it to service and let them play with it. If it was a 120 4 stroke then I would say you have the regulator installed backwards. On the 4 strokes they will bolt on either way and if its backwards it will do what you describe.
But since its a 45, I have no ideas
Troy Newman
Team YS Performance