A battery can show "full" but break down immediately under load because of a bad cell or two. If you have not tried a different battery, you are not troubleshooting in a proper baseline approach. You also did not agree to try without the switch mounted. That would also be done with a different battery. You MUST start with the baseline being rock solid. Battery, battery connection and bare metal ground. To be 100% sure before tearing into other ideas. Don't trust batteries!!

You say the starter had only two coils, so we assume it was running good at one time and you didn't find it in an alley.

What are the brushes resting against in your pic?...and why?


Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn