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Old 06-13-2013, 11:34 PM
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Do electric choke coils go bad?

Do electric choke coils slowly go bad, or do they die all at once? I removed the coil from the carb and wired it directly to the battery. It took quite a while but eventually it moved, barely. I gave it about 10+ minutes and it moved about 1/8". Granted it wasn't in the choke housing, so some heat was lost.

Maybe that is all they are supposed to move and my linkage is worn out...?

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Old 06-14-2013, 09:18 AM
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What did you ground it to?
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Old 06-14-2013, 10:03 AM
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Quote:
Originally Posted by RWENUTS View Post
What did you ground it to?
One side of the battery to the pig tail connection.

The inside of the choke plate cover has a metal contact the seems to ground directly to the carb body. I hooked that up directly to the battery as well.

Before this I did verify that there was continuity with a multimeter. I think it was around 15ohms

This is for a Q-jet carb, btw if that matters. And I also verified the pig tail does send a full 12v under normal operation.
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Old 06-14-2013, 03:50 PM
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I've seen them do both types of failure. Hey, it's an electrical component....just sayin'.
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Old 06-14-2013, 10:09 PM
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Assuming the internal connection is good, then yes, they can fail. Since it's a bimetallic device it will either break, usually near where it's hooked to the +12VDC input or distort/bend from overheating
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