I have an 04 R1 which was not charging, I replaced the stator rotor and the coil windings, when running, there was about 1.7v AC off each phase of the stator. This made no sense, resistance and earth testing the windings said it was OK, I got another set of windings just in case they were faulty, it now reads 2v AC at each phase and puts out 4.7v DC if I plug in a regulator (I have 3, all say the same). What on earth is wrong? If the whole stator is new how can it not generate voltage? Is there something else that can fail inside the engine that prevents the rotor from turning properly?