Carb choke issue

[wlake75]

First, stats:
1978 Fiat 124 Spider 1800
Carb: 32ADFA11 102

Here is my problem, when the butterfly choke is closed car idles well, although a little high. When it opens the running is over. If I hold the butterfly slightly open it idles fine. I do not know if this is a choke problem or if I need a new thermostat (water choke btw) or if it is something I have completely missed. Thanks for any help.

[TronDD]

When the choke is closed, you are on the high idle setting. So it should be idling high. Once the carb warms up and the choke opens, you can blip the throttle to take it off of high idle and it goes to the normal idle settings. Check your idle speed and mixture screws.

Tim.

[bulldog4444]

Unscrew your idle cut-off selnoid, pull off the jet at the end and blow it out. You probably will have repaired your ride for about 30 second of time. A small fleck of anything in that "small" hole will seriously effect idle. That symptom happens to me several times a year and I don't even think about the fix anymore, I just react to it. After a couple decades with your 124, every issue will have presented itself.

Enjoy this fantastic sports car!

Good luck, Bull

[wlake75]

So far:
I understand the high idle setting, it was idling high even off of the high idle notch, adjusted that out. Idle mixture is at factory recommended 2 turns from bottom.

I reset the choke this morning to factory recommended setting, and blew out idle cut-off solenoid and replaced. Fired it up and let it idle for a minute and it did much better. I will have time later to make sure all is good, thanks.

[wlake75]

Tried again, no luck. When it warms up it simply will not idle. If you hold the throttle open it will run. Apparently its not getting enough gas for idle. Choke now appears to be working properly since I adjusted it this morning, but that is the only improvement.

[chrisfiat]

dirt somewhere in the idle circuit or a vaccume leak. throughly check for leaks, and throughly clean and rebuild carb

[majicwrench]

Make sure idle soleniod clicks when wire unplugged/plugged. Also, when pulling and cleaning idle soleniod jet, it works much better is soleniod is ENERGIZED. In other words, pull sol, plug into power wire, turn key on, ground sol against something (it should click) and NOW blow it out.
Keith

[wlake75]

Definitely the solenoid. I checked it for a click with power and it did, but with it backed out a turn car idles perfectly. I will try to blow it out again in the AM. Thank guys, awesome help!

[wlake75]

Just a follow up. Thanks for the help, the solenoid is bad even though it sounds like it works it is clogged and I can't blow the obstruction out. I will be ordering a new one and all will be good! Thanks again for all the help.

[So Cal Mark]

the solenoids dont' get clogged, it's the jet on the tip. Merely pull the jet off and clean it and reinstall