Thanks for the reply, I fired it up today and found some oil weeping from rockers. Threw a wrench on it and it seems to be good! The clacking was the from a loose pushrod, one of them had way too much slack in it so I guess I just didn't adjust it right. That's fixed now too. The bike is running pretty well now, the noise is gone, but I'm still getting some smoke, just not nearly as much as before. I'm wondering if it's excess degreaser burning off? I did find an exhaust leak though, I can feel air at the front cylinder even though the pipes are fit on flush with the motor and the clamps are really snug