If I were you I'd do a search on the site for Stator tests. Basically, the test is to measure what AC current is coming out of the 3 yellow wires which run from the Stator. Measuring that output at various RPMs will tell you how much the stator is producing. Once you know that, you'll know if the stator is shot or if it could be something else further upstream from the stator (like the RR or the Junction box or a bad wire somewhere).
It may very well be the stator, but do the right test before you decide it is.
MF Battery, Iridium Plugs, RR relocated, Voltmeter, 170/80/15 Kenda Kruz rear tire, DIY Samsonite hard bags, DIY shaved seat with Beaded seat pad ('cause that's how I roll) and the dreaded STATOR CHANGE.
Shining Black Bess '86 VN750, retired for parts after a fried stator and being knocked (kee-runch) in her parking spot.