With the fog machine connected and the adapter switch turned on,the dragon cycles a few times and fog comes out.When it stops is it waiting for the fog machine to heat up again?Do you leave the switch on?
If it's like a typical fog machine, then yes. They have to heat up and then shut off in cycles if they're little non professional type (basic home haunt foggers aren't capable of chugging out clouds of fog like the movie/TV ones... man those are so amazing).
But I don't have this prop, so hopefully someone that does will chime in with a real answer.
With the help of a blower from an old inflatable and some dryer vent and duct tape I was able to breathe new life into my dragon inflatable. Just adjusted the zipper at his base to offset the extra power from the larger blower.