1976 550 four lights

[oldtuggie]

Can anyone tell me if the engine needs to be running for the head and tail lights to come on or should they work off the battery.

[SteveW]

Mines a 74 and the engine does not need to be running.

[oldtuggie]

Thanks for the reply.
After repairing several broken wires and bad connections everything is working well now.
It's taken a full day of wire tracing etc but it's really satisfying when everything is sorted