It was just coincidence that this happen, I think its cdi and or coil. I went threw the carb it ran great and then boom like it lost over half its power and almost die if you let off the throttle. Thats the issue it had when the guy dropped it off but prior to going threw the carb it didnt do its thing until I put in revs. That's what made wonder but from searching these have known cdi issues. Thanks for the response.