How is it that the idling speed of EFI motorcycle is unstable and it is easy to turn off?

The unstable idle speed of EFI motorcycle may be caused by airway blockage, air leakage in intake manifold and sensor failure. The specific reasons are as follows: 1. Throttle body is blocked by carbon deposit: Throttle carbon deposit will affect the opening and air intake, which will make the engine speed unstable and accompanied by jitter after motorcycle starts. If the throttle is too dirty, it needs cleaning. Generally, the problem of unstable idle speed can be solved after cleaning. 2. The fuel pressure is too low, and the intake manifold leaks: if the fuel nozzle is blocked or the oil circuit is blocked, or the fuel pump pressure is insufficient, the fuel pressure regulator fails. The proportion of this poorly atomized mixture is abnormal, and the combustion is incomplete, resulting in unstable idle speed. If the intake manifold leaks air, it will affect the distortion of the feedback data of the intake pressure sensor, resulting in inaccurate control of the intake air volume by ecu and abnormal mixture. Resulting in unstable idle speed of the engine. 3. Sensor failure: The air-fuel ratio cannot be accurately controlled due to related sensor failures, such as air temperature sensor, oxygen sensor, throttle position sensor and intake pressure sensor. The relevant sensors need to be replaced. ?