[DLC]

If the bike is in a good working condition and I disconnect the battery while the engine is running, is the stator will be able to keep the engine running?

 

[Gene]

If the bike is in a good working condition and I disconnect the battery while the engine is running, is the stator will be able to keep the engine running?

No, don't do that. That is why a failed/dead battery will stall the engine.

I don't believe that it will keep running and it may damage the regulator.