Question

Do emission control regulations reduce the engine's horsepower and capacity? Yamaha is moving from R1 to R9 which is less powerful with less CCs

Answer 1

Yes, It's possible that Yamaha may be adapting their models to comply with stricter emission standards, leading to changes in power output and displacement. However, for the most accurate and up-to-date information, it's recommended to refer to official Yamaha sources or reach out to the manufacturer directly.