my wheeler would not start on electric start all of a sudden. ran like brand new when started with rope starter. tried the 15-509 cdi and started right up with electric starter, wow, however the motor doesnt run correctly, seems like the timing is off, had missfiring or a skip and no power, for this model of wheeler. im going to resell this cdi box and buy an oem cdi box now i know the cdi box is the problem.