Ok. I think you have maybe one spring pulling the wrong way. Look closely at that front most spring. Follow it to the carburetor. Look where it's attached. Isn't it pulling the carburetor linkage to the open position? In other words, looking from the DRIVER'S seat, doesn't that carburetor linkage turn CLOCKWISE to open the carburetor throttle plates? You can tell easily just by depressing the gas pedal and watching the linkage.