- Yamaha YZ450F (2003)
- Yamaha YZ450F (2004)
- Yamaha YZ450F (2005)
- Yamaha YZ450F (2006)
- Yamaha YZ450F (2007)
- Yamaha YZ450F (2008)
Engine: 449.0 cc (27.40 cubic inches), 12.5:1, Single-cylinder, DOHC, Multivalve, water-cooled, four-stroke, Double Overhead Cams/Twin Cam (DOHC), 5 valves per cylinder.
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