If the Atz throttle is too wide, there will be no buzzing.

Yes According to the query of Artz official website, if the throttle valve of Artz is too wide, there will be a buzz. If the Atz throttle valve is too wide, the air intake and load of the engine will be controlled by the throttle valve, which will further affect the fuel injection and ignition of the engine and cause the fault light to light up. If the engine throttle is too wide, it will cause metal knocking and abnormal sound, and may leave traces on the rocker arm and valve stem, resulting in buzzing and abnormal sound.