Yesterday I took the 2006 750 Breva out of its shed after its winter lay up. The battery was low, so I charged it one hour or so with a conventional (not trickle) charger. I started it up all working AOK - rode it a short while, parked it up, washed it, let it dry off, then started it up again (after charging the battery with a conventional charger (not trickle) for a further half an hour.
The bike started and ran - but all instrument lights had vanished - everything else working. All fuses OK.
Any suggestions very welcome.
My own theory is that the battery has more or less had it, enough initial current to start and run but insufficient voltage for ancilliary systems (presumably the charging circuit is coming in full blast after starting). I will be fitting a new battery next week.
This is the first time in 15 years of ownership of the machine there has been any sort of electrical fault.