My 77 xs750 runs great at first. After it gets warm it starts cutting out (usually after about 4-5 miles). After 5 min it starts right up again. I recently replaced the 3 coils but it still is doing it. I bought 3 resistors but I´m not sure where they are located. If anyone might know the cause of this or where the resistors are located I would really appreciate some advice. Regards, Shane