Interesting problem. Do your pumps "run" but not move gas while the engine is cranking or the engine momentarily fires up ? Do you
Follow the wee hoses to the intake manifold to find the valves.--------If there is an idle stabilizer in the wiring harness you might want to remove it.
Inspect / replace the impeller.----Do a compression test.
Thanks for the reply. I don't understand "check the recirc valves". Is this in the carbs? Also "file 13 the advance box". Is this
Wajira, Thanks I finally found it thanks to your help, I'm with ya on this one. I'm pretty sure thats what it is. Took the 3 screws out and it came right