To be even more specific, I started her, she got going, then I got out to let her warm up and she stopped --- nothing unusual, but she didn't start again.
I checked the obvious -- got plenty of gas.
I checked the battery. Heck, I took the battery out, put it on the charger for a morning, and cleaned all the connections.
The throttle cable is fine, and I see the hex bar moving. Even pushed it down a few times with my hand. I could smell gasoline after a while, so I am presuming it's getting gas. Thought maybe it was flooded so I tried again several hours later, no luck. Next morning, no luck.
The engine turns physicaly with the starter. Not slow or seized or the like --- plenty of oil, etc.
This is a 2100 CB Performance, dual webers, Malloroy ignition.
Before I start pulling plug wire and getting out the volt meter, I'm looking for ideas.