Quadrajet Problem Solving > Diagnose a Quadrajet carburetor problem

Marine Quadrajet Flooding Out

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Cliff Ruggles:
We don't supply, use, or recommend brass floats, especially for Marine units.  It didn't come with any kit you got from us, we don't even have them in stock.....Cliff

rozicrc:
I think I installed the old float by mistake.  Is the one you supply black plastic with f76 and 1073 on it?  I will change out and see if it resolves.  i know I have your needle and seat as the old ones are 1/8"diameter and I disctinctly recall getting the thick carb mounting gasket from you.  I am not sure why the float makes a difference but I will give it a go THANKS!!!

rozicrc:
I installed the plastic float today and pitched the brass one.  I did install the wrong
One.  I checked and I have the new needle and seat in the carb already as well.  Good news is the carb flooding is now a thing of the past.  Bad news is the boat won't run for more than 30 seconds.

I get it to start but it chokes out and stalls, easier to do when running rich with a spritz of starting fluid..  I have checked spark, timing, choke opening , moved fuel pressure between 3.5 and 6 psi, verified timing is 6 degrees advanced, and tried 2 to 4 screws open on the idle adjustment screws to no avail.  I also checked fuel filter as well.  Only thing I noted is the fuel left a yellowish residue when I was taking plumbing apart. 

The fuel was stabilized but I am wondering if in the last 14 month if the fuel has weathered the light ends off.  Boat runs for a couple of seconds when I put fresh fuel in thought the primaries.  Is there anything else I should check before plumbing up to a source of fresh fuel?  Are these symptoms consistent with weathered fuel?

rozicrc:
Also tried float setting of 3/8 and 1/4 and 7/16

77cruiser:
Is their any fuel in the carb when it dies? Does the accel. pump squirt fuel?

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