Hey all, I rebuilt the stock carb about a year ago, replaced all vacuum hoses, replaced choke pull-off and choke thermostat. Used factory Carter BBD service manuals and more to rebuild the carb and it was basically PERFECT at that time.
Fast forward to this year and it runs rough and rich while warming up and refuses to go into high idle position when I do the usual press it to the floor before starting. Now it is getting cold here, like -20 C so it's definitely cold.
I haven't researched a lot yet but is it the choke thermostat that causes the linkage to move to the fast idle position? If I can get it back to going onto fast idle at cold startup I think that will fix it. The choke thermostat was new last year and I put voltage to it to test it and it does move some. I don't know how far it should move though and how fast. I think I have about 60 seconds maybe for the choke thermostat to do it's job? Not sure.
I really need to get fast idle working because I have basically parked the car for the time being while I figure it out. It's OK it's not my daily driver, fortunately.