In 1998 Yamaha brought the four-stroke back into the motocross mainstream with the introduction of the YZ400F. Using technology from their road-race team Yamaha brought an all-new level of performance to the Open class with the revolutionary YZ400F. While this first version was heavy and somewhat temperamental at times, it was a quantum leap forward from previous four-stroke race machines and the beginning of a movement that would transform the sport in the decade to come. | The Motocross Vault
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Dive into the world of motocross engines. Learn about the pivotal shift from 2-stroke to 4-stroke, the impact of Yamaha's YZ m400, and the rule changes that shaped the sport. A look back at a turning point. #Motocross #YamahaYZ #2Stroke #4Stroke #EngineHistory | Motocross Qc
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