From grey to yellow to white to blue, Yamaha’s YZ lineup — launched by the original, 1974 YZ250A — has been winning races and championships for 50 years
Screamin’ Yellow Zonkers
![](https://americanmotorcyclist.com/wp-content/uploads/2024/06/Screenshot-2024-06-28-at-7.15.44-AM.png)
From grey to yellow to white to blue, Yamaha’s YZ lineup — launched by the original, 1974 YZ250A — has been winning races and championships for 50 years