I knew the roll switch wasn't anywhere in the front of the scoot (I've been in there too many times).
While pondering where to start looking, I glanced at the front of the seat. Low and behold, I could see the little blighter through the plastic grille.
Eight tappers ant two bolts later, I had access
Quick swap over, covers back and the Jetmax started right up - no warning flashes - just a good girl again.

Roll_SW.jpg