Gasoline hose torn off on the gas tap

My aged ZZR causes me some grief, actually I just wanted to lift the tank to get to the battery pole, but unfortunately the old petrol hose is torn down directly on the tap. Is probably already a little older the hose. Just cut off straight and again I don’t trust myself. then there is even less space when lifting the tank… Well the question, can you just change it? Or do you have to disassemble half the moped to get there first? If it were easy, which slug also do I have to order? is the meterware or something special? Greeting Kaiser