Attribute | ![]() Yamaha YZ250F 2012 × | ![]() Kawasaki KX 85 II × |
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General | ||
Production from (year) | 2012 | 2019 |
Make | Yamaha | Kawasaki |
Model | Yamaha YZ250F | Kawasaki KX 85 II |
Category | Cross / motocross | Cross / motocross |
Engine and transmission | ||
Engine type | Single cylinder, four-stroke | Single cylinder, two-stroke |
Valves per cylinder | 5 | - |
Fuel system | Carburettor. Keihin FCR MX39 | Carburettor. Keihin PWX20 |
Engine details | Titanium valves | - |
Displacement (cm³) | 250 | 84.6 |
Cooling system | Liquid | Liquid |
Transmission type,final drive | Chain | - |
Bore (mm) | 77 | 48.5 |
Stroke (mm) | 53.6 | 45.8 |
Gearbox | 5-speed | - |
Fuel control | Double Overhead Cams/Twin Cam (DOHC) | - |
Ignition | CDI | Digital |
Clutch | Multiplate, wet | Wet multi-disc, manual |
Lubrication system | Wet sump | - |
Compression | 13.5:1 | 10.9:1 |
Chassis | ||
Front suspension | KYB Speed-Sensitive System, inverted fork: fully adjustable, 11.8-in travel | Inverted telescopic fork |
Rear suspension | KYB Fully adjustable single shock | Bottom-Link Uni-Trak with adjustable spring preload, 24-way compression and 21-way rebound |
Front brakes | Single disc. Hydraulic | Single disc |
Rear brakes | Single disc. Hydraulic | Single disc |
Diameter (mm) | 245 | 184 |
Frame type | - | Perimeter, aluminium |
Front tyre | 80/100-21 | 70/100-19 |
Rear tyre | 100/90-19 | 90/100-16 |
Rear wheel travel (mm) | 318 | 275 |
Other | ||
Starter | Electric | Kick |
Color options |
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Dimensions | ||
Wheelbase (mm) | 1,476 | 1,310 |
Kerb weight (kg) | 103 | 77 |
Overall height (mm) | 1,306 | 1,150 |
Overall length (mm) | 2,169 | 1,920 |
Overall width (mm) | 826 | 765 |
Seat height (mm) | 991 | 870 |
Ground clearance (mm) | 378 | 330 |
Performance | ||
Fuel capacity (l) | 6.06 | 5 |