To add to the knowledge bank
On the F650GS single spark the circuit boards chafe around the ODO and cause problems, info came out of Wild Dogs forum, pics over there
On all the F650GS dash assemblies water gets into them and causes crud build up around the 12 pin connector which then shuts down the voltage regulator, it is a protection mechanism in the VR IC. Symptoms can be intermittent start up and shut down of the dash through to dead dash
Cleaning the circuit boards resolves the problems, unfortunately dealers have been binning dash assemblies world wide when the fault is an easy fix