Ahhh!
That explains why sometimes when I shift into neutral the light may flick on and off. Then by moving the shift lever just a trifle the light comes on. The little ball wasn't making good contact with the cam.
YES ! .... as apposed to a spring loaded switch , like a brake light switch, making and breaking contact inside. Drove me crazy looking at the Schematic !.... it shows it as a complete switch with one wire. But looking at the " switch" ..... It has a plastic body ! D'oh
So ground is made on the Cam Plate.. and the ball must roll into one of those slots on the plate and break the ground. I'm thinking when the light gets a little flickery.... you might be on the edge of the slot in the cam-plate. Or the ball and internal spring get a little sticky.... and then drops, as you wiggle the cam plate.
instead of eating lunch, i pulled the battery and holder out. found the harness side wire snapped off at the connector. stuck some spade connectors on. neutral light functioning. that harness under there is a friggin' mess! thanks for the insights guys.
Excellent ! At least that is an easier fix at the connector , then at the switch it's self
... Curious, do you still need to pull the clutch in to start the bike? ..... It's an odd circuit on the schematic....