(1983 / Production Model)
This was the successor to the RZ250 model that did so much to stimulate the road-going 2-stroke sport bike market. Its newly developed in-line 2-cylinder engine was the first to feature the Yamaha Power Valve System (YPVS) variable exhaust valve device on a production model, and adopted capacitor discharge ignition (CDI) with electronic spark advance to help provide both class-leading power (43 PS) and good fuel efficiency. Also, its chassis sported a racer-like wide double cradle frame, a front fork with variable damping, a new linked type Monocross rear suspension and more, giving this model both excellent handling and styling that embodied the Yamaha racing spirit.
- Overall length × width × height: 2,095mm × 710mm × 1,170mm
- Weight: 145kg
- Engine type: Liquid-cooled, 2-stroke, in-line 2-cylinder, 247cm³
- Maximum power output: 31.6kW (43.0PS) / 9,500r/min
- Maximum torque: 33.3N･m (3.4kgf･m) / 8,500r/min
- Price: ¥399,000
*All figures, etc. in a model's description or specifications are from when the model was originally released.