V7 850 Stone wouldn't start

Early on I had successfully disabled the sidestand switch – replaced it with a wire loop on a plug, where it connects to the loom.

I was so flushed with success and pride of a mod well done, I decided next to have a go at bypassing the fall sensor. This struck me as something else to possibly throw a spanner in the works as it's part of the kill switch circuit.

But the service manual troubleshooting page tells lies. It sez there should be +12V on one side of the kill switch, but there isn't. Nothing. It connects to one pin of the ECU, then the other side of the kill switch connects to another pin of the ECU, and this side incorporates the fall sensor, which also needs 12V and an earth for reasons I don't know. So it seems the kill switch only connects two pins of the ECU together, and I can't detect a Voltage anywhere on those lines, in any circumstances, nevertherless the kill switch works as such, so some kind of communiction must be going through the switch, somehow. Maybe it's a digital signal? Anyway I decided to leave well alone, button it all back up and not mess with it anymore.

But in light of what I found I learned to flick the kill switch a couple of times before starting, especially a cold start, just in case the contacts have decidied to go high resistance in the interim. Now some people say never operate the kill swich because it wears out the contacts. On the other hand, the contacts should be self cleaning, if they're the sliding type (and they usually are).