So looking for some help with a 750 Sport fitted with electronic ignition.
Bike is a recent full restoration from a well known restoration shop, all new and shiny and less than 1500 km on the clock.
Electronic ignition is BC0500006 ELECTRONIC IGNITION 750 R/C Sachse Electronik, Germany.
No ignition problems so far.
I took the bike out on Sunday (well I tried).
About 1 mile to Petrol Station - engine dies as I pulled in - fuelled but could not restart.
Got bike home, no spark on either cylinder.
Looked at battery which had been on a trickle charger, low electrolyte.
Swapped for battery off another bike - healthy spark - bike fired and ran.
Went out, half a mile - bike stopped and refused to restart.
No spark on either cylinder.
Let bike go cold, first kick and it fired and ran. 3 or 4 minutes stationery then stopped.
No spark on either cylinder, would not restart.
So:
Battery now topped up and fully charged (and I had used a battery off another bike too - so battery OK methinks).
I know that electronics can be very sensitive to iffy batteries but whilst I know the battery I first went out with had low electrolyte levels, the battery I swapped it over to was fully topped up, healthy and had taken me out for a run the day before on a 900ss.
Connections to key switch look sound.
Earths sound.
Fuse box clean and polished, took fuses out and cleaned and replaced.
Changed plugs for new ones - no difference.
I think it is therefore something heat related in the electronic ignition but I am not familiar with what tests to do.
Any suggestions?
(I mean to get it fixed, not stuff like put the points back on etc thanks lol

Regards
Stuart