Quadrajet Problem Solving > Diagnose a Quadrajet carburetor problem

first timer don't want to break my first carb

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David89k:
Hello all, I'm new to the world of carberation. I just bought a 78 k25 and installed a new manual fuel pump and couldn't get it to prime. I rigged and hund a fuel supply and managed to get the truck to start. So here's the problem the truck will only run on idel. I have to use starter fluid for it to start doesn't matter how many times I pump the pedel. Second problem if I rev the truck it will to a point if I go slow and when I come back to idel I will just die I even tried turning up the idel. I tried you tube but I don't know where to start. U think I'm missing parts for the choke and secondary. would appreciate any help I've dreamed of owning this truck sense childhood. Almost forgot I have no idea what vacuum line goes where they were not hooked up when I got the truck

Cliff Ruggles:
What is the carburetor part number?

Some under the hood pics of your set-up would also help if you have the ability to put them up here......Cliff

David89k:
4mv This is the model of my qjet if you need other information please let me know where it is so I can also learn what to look for. I can't upload pics I keep getting an error saying file size to large.

David89k:
More Pics coming

Cliff Ruggles:
What is the part number?

It is located drivers side of the main casting just above the secondary throttle shaft. 

Should be something like 17058213, which is a very common number for the 1978 non CA emissions truck units.

From what I see in the pick the choke link/parts are there as is the link up to the secondaries.  It may be missing a vacuum tube on that side of the carb, pretty sure they used one coming out the lower corner of the choke pull-off bracket.......Cliff

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