So I have the 4 pin plug coming from the stator. 4 wires, Red, White with Red, White with Blue and White with Green. Which of these wire do I test ohms for the source coil? How do I test the pickup coil? Do I have to take off the stator cover to test the pickup coil? The source coil and the pickup coil are the only two stator parts to test for no spark.... correct?