How to diagnose the failure of Honda GX340 carburetor tempering during rapid acceleration

 Honda GX340 carburetor tempering in the carburetor during rapid acceleration, usually caused by accelerating oil passage blockage, accelerating pump failure or excessive mixture of gas, etc. Generally, this method can be used for diagnosis:
      Suddenly increase the throttle, the speed can not be increased, but to close the choke to cover the carburetor mouth, the speed can be improved, the bad symptoms disappear, which means that the mixture is too thin.

Suddenly stepping on the accelerator pedal, the engine should be turned off in order to prevent the tempering accident, so that the throttle valve continuously opens and closes, and the carburetor port is inspected to see if the fuel injector nozzle is sprayed with gasoline; There is a gasoline squirt, indicating that the fault is at the accelerating pump or at the accelerating orifice.

     Check if the acceleration linkage is good, disassemble the carburetor cover, check if the acceleration pump rod circlip is detached, whether the cup is damaged or loose, and the spring has failed. If it is intact, you should check the inlet and outlet valves, accumulator holes and nozzles for dirt.