Well I have had my bike back for 2 weeks now and it has never run stronger! The cam chain gear replaced and all is quiet. It even had a service bulletin on it to adjust the throttle positioners, they were off by the way. These are done by voltage readings for those who don't know, I did'nt before this. Also had the valves checked and had one shim changed out. Total cost $0. I haven't looked yet but my dealer told me you can tell if you have the new design on the cam gear because it has a lip on the outside of the gear to keep the chain better secured. You can look at it by taking off the black inspection cover on the front of the motor, the gear is right behind it.