The headlight should turn off in the start mode. If it doesn't, you have a bad switch. Then go to the solenoid and check for power.Not starting. I'll check the the starter selinoid next.
Better to use contact cleaner than WD40 on switch gear, contact cleaner will clean and then evaporate, where as WD40 will leave a film that will attract dirt and dust which will long term wear the component. Same reason that WD40 should never be used on locks, graphite powder should be used on them. :bow:Try spraying some WD-40 into the starter switch/button.
Open the housing enough to really get some of the cleaner into the switch, and spray away. Wrap it in rags to keep the overspray at bay.
I had the same thing happen. Turns out it was the starter. The plate that holds the brushes in place was no longer grounded to the starter housing. Take the starter apart and clean the housing, end-cap, etc. and reassemble. Make sure the long threaded rods are TIGHT and give it a go. Total cost......$0.All was well, and without a warning when I press the starter now… NOTHING! Everything lights up like it should, but no starter… nothing????