The Yamaha FZ version 1 is known for its good fuel efficiency. On average, the Yamaha FZ version 1 can deliver a mileage of around 40-45 kilometers per liter (km/l) under normal riding conditions. However, it's important to note that actual mileage can vary depending on factors such as riding style, traffic conditions, maintenance, and terrain. It's always a good idea to refer to the owner's manual or consult with Yamaha or a trusted dealer for more precise information regarding the fuel efficiency of your specific motorcycle model.