1998 YZ400F (0WK4)
(1998 / Racing Machine)
This is the machine based on Yamaha’s first 4-stroke production motocrosser YZ400F and modified for AMA Championship competition in the United States. Doug Henry rode against 250cc 2-stroke machines and placed 7th in the ranking. He became the 250cc champion in the outdoor Nationals Motocross.
- Engine type: Liquid-cooled, 4-stroke, DOHC 5-valve, single-cylinder, 399cm³
- Transmission: 5-speed
- Maximum power output: 40.5kW (55PS)
- Weight: 107kg
*Figures show production model specs
*All figures, etc. in a model's description or specifications are from when the model was originally released.
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