Throwing new parts at a problem until it gets fixed can get expensive. There are less expensive ways to troubleshoot.
For example: turning the contact within the switch 180° may solve the problem. Of course, checking for a sloppy linkage would be the first order of business.
There may be cheaper ways to troubleshoot, but since I'm not aware of any of them, I'll start with the cheapest and easiest parts first, and see what happens. And how would YOU go about checking for sloppy linkage? I can't find it anywhere in the shop manual. And I'm still wondering how this post got stuck in the engine section instead of electrical. Anyway, I put the new switch in and still no luck, even when I push the button down manually, which eliminates the sloppy linkage as my main problem. Going back out after I life weights and run my miles to check the wiring from the ammeter. I had a bad one earlier this year and replaced it. My volt/ohm meter was up at the shop where I work on my bike, so now I can start the ohming out game.
