First, remove the air filter cover, remove the old dirty filter, and remove the debris from the crust. In no case may the debris be thrown into the hole of the crust, in which case it will be directly into the engine.
It is more convenient to remove the air filter corset with the patchwork and wash them.
It won't even require a tool. It is necessary to disconnect the rubber handle from the cover of the box, unbutton the tube from the metal plate with the opening between the battery and the headlamp. After flushing and drying of the shell, the filter body and tube can be installed, installed a new filter and attached to the cover.