Kawasaki Z2 750 RS Overspeed function

I'm stumped. I've never had a functional Z2 in the garage nor have ever had the pleasure of cruising one, only bits thereof. But persons that could of had the pleasure or knowledgeable about how this system functions Please, need to know what i'm seeking for original function and attributes. Seems a simple SPST switch in the gauge but that "cannister", has to be some sort of "blinking/oscillator". Otherwise it wouldn't be required for a simple filament lighting. And does it only illuminate the handlebar attached bulb and/or the headlight bucket red jewel? Or perhaps both? I can go back thru the schematic and decipher but "maybe" someone has ridden one of these and has experienced first-hand it's function.         

Member "Mcdroid" has a Z2 listed in his signature so hopefully he will see this and respond ?