I've had problem with my bike shutting off while cruising @ approximately 70MPH. I changed the fuel pump, it didn't help. I also bought a CDI BOX. Before I installed it, my friends refered me to a mechanic. He did the decompression check and he took it for a ride. There were no problem at all from what he seen. He said when he did the decrompression check, it seem to fixed whatever the problem was. I was so glad it only cost $30. I thought it takes more than a decompression check to fix the problem. Now I'm stuck with a CDI BOX, it's for sale if anyone interested.