Go through all the little stuff and make sure everything is connected. basics first. I recently had a real idiot moment. my bike started breaking under power up top in the rpms as if the fly wheel or stator was going bad. I was 2 hrs from home with no parts to swap out. Thought it was jetting maybe, did slight adjustments just to rule out jetting, I was right it was electrical. Then I lost spark completely. Come to find out, it was one of the wires from the wire harness came un clipped from one of the primary leads on the coil, piece of rubber was still over it though, so it looked like it was still connected.