Ok, I determined which is the ON position and I can still hear the wiper assembly trying to function, so I turned this OFF. No impact on vacuum issue. Sprayed carb cleaner (cold engine) around carb and intake manifold, no changes reported. Let the engine warm up properly after setting idle mixture screw and it will now run with choke pushed completely in. Problem is now I still have major hesitation almost shutter when pushing the gas pedal in. Push it in a few times, it sounds strong, but initially very hesitant and rough. Almost like fuel starvation or misfire.
Determined through looking around also that the gas level line (black line coming from top of assembly) has been cut under the seat, so no gauge for that as well as no movement on the engine temperature. The oil pressure shows about 15 and charging indicator does move to C side as expected. Will need help getting these sorted, but will try the Electrical team for this.
