1999 GTX stalling on takeoff

[GSP]

Wondering if anyone can help me with my problem? I just did some work on my GTX a week ago and got it running good(replaced grey fuel lines,cleaned carbs, etc..). I thought the fuel selector was shot so I bypassed it and everything was working fine. It had good response and picked up speed nice. My carbs were not in adjustment so I thought maybe the fuel selector was good so I hooked it up again but when I pin it wide open it stalls. I bypassed it again but it is still stalling out on takeoff. Any comment????

 

[wtrgrl]

Did you also clean the fuel selector? If not it was probably gummed up and hooking it up sent something through your system clogging a filter

 

[GSP]

I bypassed the fuel selector but it still stalls at wot on takeoff. I talked to a mechanic and he said it might be my accelerator pump. I took of the carbs but could'nt unscrew the pump( one screw would not come unscrewed). I did notice though that when i pressed the throttle gas came out of thoses brass pipes in the carb necks which makes me think it's working fine. No dirt in carb filters but I checked the plugs for something to do and I found beads of water on the plugs. I'm thinking that there's water in my gas. If so would that make it stall on takeoff or at least make a difference to performance?

 

[GSP]

Gtx stalling on takeoff

If there's dirt in my accelerator pump will it come out eventually or will I have to take it apart? One screw will not unscrew and I'm scared that I might twist of the screw. If the pumpsquirts gas as soon as you throttle it, it must be working right? Any comments are welcome