I wanted to share a fix I just did on my 03 gsxr1000.
I had not lights on the dash, no headlights, indicators were constant on, only neutral indicator was on. Bike worked fine other than that, fuel pump, starter etc.
Traced it to a burnt out plug which connected all the 'negative' leads from the front assembly. Located under the front right cowling. Replaced the plug and hetero block, by soldering all together. Works fine now.
Spent ages finding it, so thought this info might be useful to somebody else.