I'm inclined to say that you haven't searched enough.
You're dead right! The search I did took half an hour before I gave up. There are hundreds of hits. So I thought a long term inmate might speed things up - and you have. Thanks heaps BillV. Your links have helped immensely.
... you could disconnect the ECM (actually you'd have to connect it to a bypass resistor) and control the damper via an Arduino and a variable resistor. In that way you could change it on the fly while riding.
That is precisely what I was hoping to do, using an MSP430 based circuit of my own design, and modifying the ECU to disable this function.
I suspect the damping will not be progressive though, like the Matris SD-R for example, where the damping rises dependant on the force being applied. Any standard, or linear damper will do this, but Matris has supposedly arranged the damping to be non-linear.
isn't it electronically controlled?
Yes it (the ECU) does have solenoid control over the degree of damping, but I don't. I want to be able to set it manually, dependant on the track conditions, not speed. Besides, the speed sensor has already been removed as an unnecessary distraction on a track bike, so the ECU has no speed information to work with.
I could have simply disconnected the speed signal from the dash and let the ECU continue doing it's thing, but in my experience, head shakes are the result of the front wheel lifting off the deck and coming back in contact when pointed in the wrong direction. That can happen when crossing a pothole in a corner, or leaving smooth pavement and entering rough, but that is rare on a track. Headshakes on the track on my K2 750 are caused by acceleration out of a corner in lower gears, not at high speed. It doesn't have the power to lift the front wheel above 4th gear.