yeah. all looks good as far as nuts and bolts. Chain is good. I hate to keep starting it with it running like this for fear of doing more damage. But I agree I think it is something internal. I also read that people have a simialr issue with bad cdi's. But it almost feels like my truck did when the transmission went. revving without acceleration, but the engine is winding as much as bogging so I'm confused. Thats why I'd like to try to meet up with someone who has the expereince. I've already spent 400+ dollars putting this together, so I'm trying to learn more instead of replace parts. If I can ya know? Sounds like part replacement is pretty regular for these.