I have installed a new carburetor on my 250 6 cyl. After it sat a few days, the battery was completely run down. It seems that the circuit going to the automatic choke is energized even when the ignition is off. Is this correct? Any help you guys (and gals) can give me would be great. The shop manuals don't give much info in this area.
ive heard that connecting the positive wire to the positive end of the coil works and of course that would not be powered when the vehicle is off. but one question is why would that one thing drain the power all out?
I don't know why it drained it, but the car sat for 2 days without being started. When I checked with a test light, the only thing drawing current was the choke circuit. I'll try the connection to the coil. Thanks for the idea. It really only needs the electric part for temperatures under 60 degrees. I should have a little time to figure it out.
i would wait to hear from more members here about where to connect it. maybe the alternator is the way to go. maybe check your battery when charged also for the drain issue. mike
It needs to be connected to a 12v source(not the coil) and only be on when the ignition is on. The factory connection is to one of the leads on the alternator(I forget which one), but you could use any 12v ignition source. If you hooked it up to contant 12v battery, the choke will never close.
After pulling every fuse in the fuseblock to try to find the shorted circuit, I started checking circuits in the engine compartment. I pulled every connection I could find, but the light stayed on. Finally, I pulled the wires off of the alternator (stator and field) and the light went out. Took the alternator (3 months old) to Advanced Auto to have them test it. It tested defective. When I replaced the carburetor which now has a working automatic choke, the additional current draw in addition to the shorted coil drained the battery. I had them test the new alternator before I left the store. Thanks for all of your suggestions! I hope I will be able to contribute someday instead of always asking questions. I also am looking forward to meeting some of you at the Round-Up in a couple of weeks.
The proper place to hook an electric choke is the 'Stator' lead of the alternator. The reason is the choke element is not exposed to any voltage at ignition turn-on that would make it pull off the choke too quickly. Only after the alternator starts to produce voltage is it applied to the choke element. This hookup does not discharge the battery when car is off but keeps the choke heated 'while the engine is running' only.
Which one is the "Stator" lead? I'm not finding anything that specifies which one it is..anyone have a picture or something?
S Terminal of Alternator. 12v with engine running. Some guys run it off an Igntion on feed but you have to be aware that if you leave the key on it will heat up and open the choke without the engine running. Kind of defeats the purpose of a choke if you happen to do that.
The 12v is for aftermarket carbs though right? A factory choke needs stator voltage off of the alternator is what I thoguth I read here before. (I gotta wire mine soon)
