Everything you wanted to know about automatic chokes but were afraid to ask
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.
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.
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.
How to debog your Quadrajet part 3
In the first two videos we looked at operational theory of the Quadrajet.
In this episode we'll explore a couple mistakes the home mechanic often
makes in an effort to improve the performance of this unit.
How to de-bog your Quadrajet part 1
Sorry guys, I got the videos a bit out of order.
The Rochester Quadrajet has gotten a bad rap over the years, often called a
Quadrabog or Quadrajunk.
In fact, this is a great multipurpose carbureter once you understand how
they work and what not to do to them.
In this clip I introduce you to the Quadrajet and begin explaining the
theory of operation of these units.
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
How to adjust Quadrajet/Dualjet fast idle
Quadrajet/Dualjet Rochesters have a fast idle adjustment screw that is
separate from the base idle screw.Here's how to locate it.
NOTE THAT THE CHOKE ITSELF MUST BE WORKING IN ORDER FOR THE FAST IDLE TO
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.
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