Speedfight 3, new petrol pump but still no fuel

Hello guys. I bought a not ready Speedfight 3 in the hope to get it back there. But my mopped and motorcycle time is too long ago than I would have really plan of the matter. I hope I get help here to get the part to run again. My first problem is that if I pull the hose that goes to the author from the gasoline pump and lye, no fuel comes. Pump is new, petrol is in and filter is clean. What else could d a problem ? Then I have another plug that is without counterpart, maybe someone knows where it belongs ? Marked with arrow is a heartless mass cable. I thank you for every answer. Have a nice evening