KIPS powervalve

Ok, so I have a Hyosung 250 '07 (carby). Riding to university the last few times (once on the motorway), the engine just stops. Nothing. Tach reads zero, speedo reading 20, 60, 90 kph each time it died. No problem, just push the starter and off we go down the road again. You get used to this sort of thing after a year with the Hyosuck. My guess is faulty stand sensor. Read up on KB that someone had similar issues. Dealership said it was chain grease on the sensor. The other day I took it off, cleaned it, lubed with Inox, replaced. Engine fired up but didn't test ride.
Today though, she would not start. Never had that happen before (except one time where it roll started easily). Couldn't roll start it. No spark, just a sad moan from engine compression leaving the pipe. Horn, lights, etc. work fine, starter motor is turning normally, but the noise is weird. I snipped the two sidestand sensor wires and joined them to bypass the sensor. Same response as before. I need my ride running for exams soon. Any help would be appreciated.
Thanks.