Apparently there has been quite a few stator failures in the 05' C90 & C50, a lot of discussion on another forum as to the cause. Defective stator, jumping then riding without sufficient battery charge (which apparently can cause excessive heat in the stator, etc. I did read an article showing where the stator made contact with the mounting bolts causing a short and arch in the stator. Also possible cause of excessive heat. My basic understanding of a stator is this:
"The stator is a set of wire coils. As the bike runs a magnet spins inside the stator inducing an electrical current in the stator. That current is an AC (alternating current) current. From there it goes to the rectifier which is a set of diodes that convert the AC current to DC (direct current) current. Then there's the regulator which is a circuit that controls the DC voltage output of the rectifier so that you will charge, but not overcharge, the battery, and also continue to run the electrics on the bike."
So my point ER, I was simply trying to interject potential problems with the specific model 05' C90 & C50, was just to be cautious as how to charge a battery in a bike. I am far from an expert, only approaching "novice" when it comes to electrics.
Do you get fulfillment from your flat earth comment?