开云体育

76 R90S

I took my R90S out for a ride, started up just fine, warmed-up, choke off and away I went. Once I was a few minutes underway I turned the lights on and the bike immediately died and instrument lights went out. I immediately flipped the light switch off - all of this happened in a millisecond - the bike caught, instrument lights came back on. I turned around and went straight home. Pulling into the garage, with the bike running normally, I turned the light switch on and the bike died, lights out. I flipped the light switch back off but now the bike is completely dead. No instrument lights, no anything when the ignition is turned on.?

I just got the bike on the lift and will be looking at it later today. I’m hoping that someone here might offer some clues. I know I’m providing minimal information and it could be many things but I’m looking for guidance on where to start.

To add, a few months back I replaced the clutch switch at the handle. There’s a post where I asked about this. On my ‘76 the clutch switch was wired into the connector board inside the headlight. The only replacement switch available has a female connector and plugs into the harness outside the headlight. By cutting the female plug off and using connectors I plug the wires into the connector board exactly as the previous switch was installed. Following that I rode the bike 2-3 times, short distances, no problem. Looking back I am pretty sure I DID NOT turn the lights on. I’m thinking this has something to do with my replacement clutch switch and the light switch but I’ve no idea what that could be.

Again I know this isn’t offering much in the way of symptoms and electrical problems are in a different league of their own, but any suggestions would be helpful.