I have a 2X26 that I have had only 3 years. Got it ready for the season and when I started it the headlights came on and as engine got up to speed they started flickering and went off and stayed off. Does this every time I start it. Had no issues last year. Did some quick checking and it appears to have a steady 12v AC at the harness connector to the lights while running but lights don’t come on. Any suggestions? Would like to find a wiring diagram too.