Everything you wanted to know about automatic chokes but were afraid to ask pt4
I've noticed many people drive vehicles with inoperative chokes. Even though chokes can be intimidating, repairing and adjusting them actually is very simple.
So, stop pumping that accelerator and follow along as we look at how chokes work and how to repair them.
Choke Idle Won't Kick Down!
For those who maybe encountering this little minor problem, or for those
who want to prevent it from happening in the future - well here it is. In
this video I discuss the potential problems that can arise from a sticking
choke and all the linkages that make it work, and ways to fix it.
Electric Choke adjustment: rich and lean extremes
In this video, I am purposely changing the rich/lean adjustment wildly in
order to show the effect. Your actual adjustments would not be this
extensive, but if your engine is loading up and not running very well, the
choke or an aspect of it's systems may be the culprit.
Carburetor Adjustment Basics -EricTheCarGuy
In a way this is 'Part 3' of my carburetor series. In case you missed them,
here's parts 1&2.
Carburetor Rebuild Basics (Part 1):
Carburetor Rebuild Basics (Part 2):
If you want to see the full version of the carburetor rebuild video with
additional footage now, become a Premium Member of EricTheCarGuy.com:
One of the most important parts of a carburetor rebuild is setting it up
properly after you're done. There are also many times where a rebuild may
not be necessary and you just need to perform some of these adjustments.
Either way, I hope this video will help you should you need to adjust your
Finding Vacuum Leaks: https://www.youtube.com/watch?v=9CPqbaSgcok
How To Check For Timing Chain Slack:
Service Manuals: http://www.youtube.com/watch?v=IN95GLDvGBc
Fairmont Drag Strip: https://www.youtube.com/watch?v=hkOdD0P38ps
Cleaning Throttle Bodies: https://www.youtube.com/watch?v=41yFXjibtLY
Solving Performance Problems 1: http://www.youtube.com/watch?v=rsGTeWayqIU
Solving Performance Problems 2: http://www.youtube.com/watch?v=sAKwCzUE_9M
Re Performance Problems: http://www.youtube.com/watch?v=_vAJi5rLMGY
Getting Better MPG:
Discussion about this Video:
The best place for answers to your automotive questions:
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Carburetor Electric & Manual Choke Tuning - Summit Racing Quick Flicks
Norm covers the basics of how to start a carbureted vehicle on a cold
morning with either a manual choke or electronic choke. Learn the
differences between an electronic and manual choke and how to properly find
the right choke position.
Identifying Quadrajet vacuum ports
I always see a lot of questions about what various vacuum ports do on a
Here's a general guide that will point you in the right direction.
Remember that there were many different Qjets over the years and vacuum
port locations and number will vary. This video is representative of
See 1976 Chevrolet pickup with Rochester quadrajet upgrade on SBC 350 V8.
We removed the hood, mounted a camera looking down on the air horn, and
took it for a spin, running wide open on an uphill grade. See how the
secondary air valve responds to rpm drop at each upshift of the THM. Also
included is a smoking burnout.
Clean a Carburetor Without Rebuilding it and Save Money
Do you own a car or truck that has a carburetor. Are you trying to get your
car to pass a smog check. Do you think you need a tune up.
Have you noticed that on youtube that other videos show you how to clean
the carburetor choke, but that does not clean anything inside the
carburetor. So the other videos don't really help you make your car run
In this example the Holley 2150 2 barrel carburetor, on a 1979 FORD 302 or
5.0 litter engine.
How to clean a carburetor cheaply and without having to remove it from the
engine. This is a way that I avoided having to rebuild my carburetor due to
it not working correctly. The problem that I had with mine was that when I
gave it the gas it had a dead spot. In other words I'd be going along and
give it the gas and it would cough and stall. A friend showed me that by
only squirting carburetor cleaner into the fuel bowl and running the engine
that it would clean it out.
I tried what he told me to do. I ran about half a can of carb cleaner
through the carburetor with the engine running and then went for a drive. I
got down the road about a mile and entered into the freeway. There was a
car coming fast and I was not up to speed and I gave it the gas and it
stalled like it used to. I put the transmission into 2nd gear and floored
it and that blew out what ever was plugging it up and it has run like new
since. This solved the problem I was having, does it sound like a problem
you have. Give it a try.
If you try this and it works then you have fixed your problem for under 5
dollars, and won't spend hundreds of dollars having a mechanic work on your
car. It also helps if you do this before going for a smog check, it will
help you pass.
automóvil carburador limpio automóvel
How to adjust carburetor mixture screws
Here's how to find and adjust the mixture screws on your carburetor.
Note that metering-block style carbs such as Holley and Demon more often
have one or 2 mixture screws in each metering block depending on the number
of venturi. Also those may not be located at the bottom of the carb as in