(1959 / Production Model)
This 125cc business-use model appeared as the successor to the YA-2. It had the same basic structure of a 2-stroke single-cylinder engine with a piston valve system on a pressed-steel backbone frame, but adopted an electric starter for easier engine starts and an improved carburetor for better fuel economy to improve performance in utility use.
- Overall length × width × height: 1,870mm × 705mm × 937mm
- Weight: 106kg
- Engine type: Air-cooled, 2-stroke, single-cylinder, 123cm³
- Maximum power output: 5.0kW (6.8PS) / 6,000r/min
- Maximum torque: 9.4N･m (0.96kgf･m) / 4,900r/min
- Price: ¥125,000
*All figures, etc. in a model's description or specifications are from when the model was originally released.