I have a 2001 Kawasaki Prairie 300 that will idle, but dies when you give it throttle. If i give it throttle very slowly, it will rev up and run good, but will not run with fast advance of throttle from idle. Been through carb several times and even put different carb on it. No help. Never had problems until Kawasaki dealer installed new wiring harness. I did notice that there is no power to the sensor and heater wires that attach to bottom of carb. Would this cause my problem? I have blown out all fuel lines, new gas, etc. etc., adjusted air mixture screw, but nothing has helped. Please help if you have any ideas.