...I have load tested the battery which was new this past March and all is good. I had replaced the R/R about 1.5 months ago as I was seeing fluctuating DC voltage on my battery monitor and my Valentine was going on and off constantly. I hooked up the DVM and was seeing anywhere from 9.5v-14.2v at idle. I assummed it was the R/R....So, I should have looked at the stator right away. When measured phase to phase with any of the white wires at idle I'm only seeing about 40vAC across two wires and I have a combination showing about 34vAC. Not up to par from what I understand. I believe I should be seeing closer to 50vAC at idle and a bit more at 4k rpm's.
Hmm, it is sounding like you may have a quite rare stock stator failure. 40VAC at idle is fine. At 5k rpm you should be seeing ~60 VAC. What is of most importance is that the readings are within a 2-3 volts any phase to any phase (any white wire to white wire). If you have one phase that is 6 volts lower than the other two phases at idle is a damning thing. Just to verify, you did your check with the stator connector unplugged from the R/R and tested it by going directly to the pins on the connector?
Any rewinding service, regardless if they can wind a Yamaha stator should be able to test your stator and tell you for sure if it is good or not.
Sorry man, BTDT, twice, fuckyou very much ElectroSport.