What should nv200 pay attention to when cleaning the throttle?

First remove the air inlet hose outside the throttle, take a tool to step on the throttle, or find someone to step on it. Don't pull it away by hand, it will damage the gear and limit mechanism inside the throttle! Especially when the ignition switch is turned on! Open the throttle valve to more than 80%, and then spray cleaning agent on the joint surface of the throttle valve plate and throttle valve.