How is it that dl250 throttle vibrates instead of exhausting after cleaning?

No idle reset. The throttle installed in the new car is different from that installed in some classic cars. The reason why the dl250 throttle vibrates after cleaning is that there is no idle reset. After cleaning the electronic machine, it is necessary to perform idling reset. If the idle speed is not reset, the vehicle is prone to shake or start-up difficulties during subsequent use.