1974 YZR500 (0W20)
(1974 / Racing Machine)
This was Yamaha Motor's first GP500 factory machine developed in 1973 to begin its campaign in the class. It was created with the concept of connecting two blocks of the 250cc in-line 2-cylinder TD-3 engine together to make a 500cc in-line 4-cylinder engine with piston reed intake valves and liquid cooling to achieve outstanding drive power. The double cradle frame was made of chrome molybdenum steel pipe and disc brakes front and rear provided stopping power. It scored a debut win at round one of the 1973 series, the France GP, ridden by Jarno Saarinen. The model on display is the 1974 spec YZR500 that adopted Yamaha's Monocross suspension.
- Engine type: Liquid-cooled, 2-stroke, in-line 4-cylinder, 494cm³
- Piston reed intake valve
- Transmission: 6-speed
- Maximum power output: Over 58.8kW (80PS) / 10,000r/min
*All figures, etc. in a model's description or specifications are from when the model was originally released.
Notice: The coloring and logos on the models on display have been reproduced to match the actual appearance in their day, and in the case of tobacco maker logos, their reproduction is in no way intended as promotion of the products or brands involved. The Yamaha Motor group accepts no responsibility regarding the damaging effects of smoking on health, etc.