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      Video: 2019 Yamaha YZ250F Features & Benefits 

3d nate

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About 3d nate

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  1. Hello, My friend has a 250 F, We have had problems with the Cams. After adjusting the valves we started it up and the intake cams spun 40 degress pushin the lobes down at TDC. The piston hits the valves at TDC. The service guys say this is common on Kawasaki's and Yamahas because of the press fit of the cam gear. Has anyone else seen this? He is now going to redo the top end. Nate