i have completely cleaned the carb and have insured that it is placed back properly, and i'm still having the same old problem. I'm at the point now where i believe it is not a carb problem, but something to do with the timing or an electrical bug. I have heard that occasionally a CDI unit will go bad? Is it possible for the timing to be off? If anybody has had a problem similar to this let me know so I can get back on a ride it.