Join Date: Jul 2016
Location: Matthews, NC
Year/Make/Model: 2008/Kawasaki/Vulcan 900 Classic LT
Color: Gold over White
My first stator went out at around 21k. It made the noise. The second one at about 51k. It didn't make any noise. Like your's, the only indication on the second stator was a dead battery. It's real easy to check though. Just remove the connector to the regulator, start the engine, and check for about 21vac across the back three pins. If one of the three phases are bad, it'll read 0vac.
The head light relay is connected to one of the stator phases. If the head light still lights up, it's a good bet two of the three phases are still charging. On my bike, two out of three phases are still enough to charge the battery. That makes me think it could be something else. Regulator or maybe even a fuse. The test procedure is in the maintenance manual. Kawasaki did a good job on the maintenance manual. If you don't have one, down load it from the internet.