After pulling off the gauge cluster and opening it up we finally found the issue. The capacitor on the back of the motherboard is totally burnt and we found some connector pins with corrosion. So I think the issue is the regulator rectifier failed and the increased current toasted the gauge cluster. I live in south FL, I ride in hot weather, I sometimes sit in traffic going back and fourth to work, and I ride it hard so imagine it just got too hot and failed.
A friend and I redid some testing and found good continuity between the 23 and 26 pins on the connector going to the gauge cluster. Perhaps I didn't get a good reading with the cheap multimeter I bought or tested the wrong pin accidentally. This means the wire junction that I thought was originally bad is likely fine afterall.
Will test the stator just in case to confirm that's still good, which I hope it is, and will try replacing that capacitor inside the gauge cluster if possible to avoid having to replace the entire instrument cluster and reconfigure the keys/cluster/immobilizer.
Would you could help me with is:
1) What is output of the stator supposed to be? So I can test the 3 wires and confirm that's good or bad
2) What is the process to reconfigure the gauges/keys?
3) Who is the best vendor to order replacement R/R and or gauges? Should I take this opportunity to mount the R/R somewhere with better cooling? Where?