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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: May 2005 Posts: 8,983 Sir Searchalot | | Sir Searchalot Joined: May 2005 Posts: 8,983 | Yes On a 12V system there is "bypass" wiring necessary. So the 12V coil has two inputs to indirectly power the points.. A full 12V input when starting because the starter draws so much and will rob the points of voltage/current. Then after start. the points run on a reduced/resisted voltage off the ballast input so they don't burn out.
So during start you "bypass" the ballast. Ballast drops voltage to approx 9V.
This is all accomplished by a side terminal on a foot starter switch OR an "R" terminal on a solenoid starter OR by an ignition switch with Ign 1, Ign 2 terminals.
A few years used a Looooooong folded "resistance wire" instead of a ballast resistor.
Last edited by bartamos; 03/18/2025 12:47 AM. Reason: clarification
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