| Attribute | Yamaha YZ450F 2014 × | Yamaha YZ450F 2013 × |
|---|---|---|
| General | ||
| Production from (year) | 2014 | 2013 |
| Make | Yamaha | Yamaha |
| Model | Yamaha YZ450F | Yamaha YZ450F |
| Category | Cross / motocross | Cross / motocross |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Valves per cylinder | 4 | - |
| Fuel system | Injection. Yamaha Fuel Injection (YFI), Keihin 44mm | Injection. Yamaha Fuel Injection (YFI), Keihin 44mm |
| Engine details | Titanium-valves | - |
| Displacement (cm³) | 449 | 449 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 97 | 97 |
| Stroke (mm) | 60.8 | 60.8 |
| Gearbox | 5-speed | 5-speed |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) | Double Overhead Cams/Twin Cam (DOHC) |
| Ignition | TCI | TCI |
| Compression | 12.5:1 | 12.5:1 |
| Exhaust system | Aluminum muffler | - |
| Chassis | ||
| Front suspension | KYB Speed-Sensitive System, inverted fork: fully adjustable, 12.2-in travel | KYB Speed-Sensitive System, inverted fork: fully adjustable, 12.2-in travel |
| Rear suspension | KYB Fully adjustable single shock | KYB Fully adjustable single shock |
| Front brakes | Single disc. Hydraulic disc. Hydraulic disc. | Single disc. Hydraulic disc. Hydraulic disc. |
| Rear brakes | Single disc | Single disc |
| Diameter (mm) | 245 | 245 |
| Frame type | Aluminum Bilateral Beam frame | - |
| Rear tyre | 120/80-19 | 120/80-19 |
| Seat | Long, two-tone, motocross-style seat | Long, two-tone, motocross-style seat |
| Rear wheel travel (mm) | 315 | 315 |
| Rake (fork angle) (degree) | 28 | 28 |
| Other | ||
| Starter | Electric | Electric |
| Color options |
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| Dimensions | ||
| Wheelbase (mm) | 1,491 | 1,491 |
| Kerb weight (kg) | 111.1 | 111.1 |
| Overall height (mm) | 1,311 | 1,311 |
| Overall length (mm) | 2,195 | 2,195 |
| Overall width (mm) | 826 | 826 |
| Seat height (mm) | 1 | 1 |
| Ground clearance (mm) | 386 | 386 |
| Performance | ||
| Fuel capacity (l) | 6.06 | 6.06 |