The sled only has 500 miles on it, and the problem is intermittent. I have ohmed out all the wires, sensors that could be, and have replaced CDI,and ECU. The problem is that the motor will not maintain 8000rpm or above when throttle is depressed completely. It will maintain 8500(up on stand) with the throttle 1/2 to 3/4 open, but as soon as you put it wide open it falls off into limp mode. The only thing I can come up with is a TPS(throttle position sensor). It ohms out perfect but I need to get an angle and voltage reading out of it. And there are no dealers that want to work with it, can you believe that. I want one so I can trouble-shoot for other people, for penies on the dollar and screw all the dealers! I will just have to advertise. What do you think? OH and it has nothing to do with ignition, such as coil or stator.