I have a 1987 toyota truck. 4x4 22r carb. the engine has just been rebuilt, i got a remanufactured carb. for it I can get it to run but it misses and sputters at idel, i have checked all the vac. lines and it is pulling 18-20 inches of mercury at idel, I have tryed to adjust the mixture screw with no luck, all the way in and all the way out, No change. I looked in the carb. with it running and there is fuel driping from the ventury on the primary side.
Dripping fuel could indicate a badly adjusted float,bad needle and seat,or possibly to much fuel pressure off the pump,if your using a mechanical fuel pump make sure the return line to the gas tank isn't plugged,if your usining an electric fuel pump make sure you have a working pressure regulator,my personal opinion on remanufactred stock carbs isn't very high,if you can return the carb I would highly reccomend replacing it with a Weber 38 DGES,you can get a Toyota conversion kit for around the same cost as a remaned stock carb.
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