Seams to be the same here my wife was ride this machine pulled up next to me and chatting and the machine shut off like using the key, could not start it so pulled her about 5 miles and loaded up the machine started trouble shooting and fount that there is no spark. found that there could be several things wrong magneto, coil, cdi, unlike switches since it was running, any ideas also I am looking for a service manual this seams to be one of thooose I gotcha years 2004 only for 400/500's.