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Hi Mike
This sentence in french is perfect.
There was a catch :
Choke (english) = starter (french)
Starter (english) = demarreur (french)

And thank you for the wire color.

Francois

 

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In case it was not mentioned in all that (I wouldn't know since my French stopped in the fourth grade level!) one great reason for the choke to be powered by the stator circuit is because it's only producing electricity once the engine is running. And the choke does not need it when the engine is off.
Your '69 diagram may not show it because that might be earlier than they were added to trucks. Not sure about full-size, but the Broncos had fully heat-activated chokes until the '73 model year, when they started utilizing the stator output on the alternator. Maybe '69 pickups had them, and passenger cars almost always got the technology changes a year or more before it trickled down to trucks. But I only saw them starting in '73 myself.

Using the stator instead of the fuse box too, was because if it was connected to an ACC circuit, and if you were sitting in the cold listening to the radio before trying to start, your choke would be wide open and offer no assistance. And if they used the only two wires that were hot in ON only (voltage regulator and ignition) they were adding perhaps some other avenue of failure to a much more important circuit such as ignition just for a choke.
So the stator while the engine was running made sense.

The only downside to that thinking was that we used to use different tricks to opening the choke prematurely when at high altitude. Since we did not desire (or need) an even more rich mixture at high altitude we could turn the key on and open up the choke if it was connected to an ACC circuit.
In my case, we would just grab the rubber bands out of the glove box and strap the choke plate open so we didn't flood the engine and make it hard to start.

Another thing I don't know about chokes, is if they were still wired to the stator on vehicles with just an alternator indicator light on the dash. Haven't looked at a diagram, but I assume they were split off into two circuits? Remember the "S" terminal on the voltage regulator is actually for the stator when the lamp was used. On most of our trucks with the ammeter however, the "S" is switched from the key and has nothing to do with stator wiring.
Anyone have a truck with alternator lamp, and can show how the stator circuit is wired?

Paul

 

You're right Paul. It's logical...




Francois