seaduuude
New Member
I have a 92 GTX with the 587cc motor. It starts and runs great, for about 15 minutes, then it bogs..then full acceleration...then bogs...then full acceleration. This cycle continues. After I stop it for awhile, it starts and runs great again..for 15 minutes...then the same thing. It is like it is starving for fuel. Carbs were professionally rebuilt and new plugs recently, all the Gray fuel line is gone and replaced with good line. Could I be creating a vacuum in the fuel tank due to bad check valves? Any suggestions? I ordered new check valves and a new fuel filter today just for the hell of it.