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| Category | Cross / motocross | 
| Year | 2012 | 
| Model | Yamaha YZ85LW | 
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Engine and Transmission Specifications | 
| Driveline | Constant Mesh, 6-speed | 
| Transmission type,final drive | Chain | 
| Gearbox | 6-speed | 
| Cooling system | Liquid | 
| Ignition | CDI | 
| Fuel system | Carburettor. Keihin  PWK 28 | 
| Bore x stroke | 47.5 x 47.8 mm (1.9 x 1.9 inches) | 
| Compression | 8.2:1 | 
| Engine details | Reed valve | 
| Engine type | Single cylinder, two-stroke | 
| Capacity: | 85.00 ccm (5.19 cubic inches) | 
Brakes, suspension, Frame and wheels | 
| Rear brakes diameter | 190 mm (7.5 inches) | 
| Rear brakes | Single disc | 
| Front brakes diameter | 220 mm (8.7 inches) | 
| Front brakes | Single disc | 
| Rear tyre dimensions | 90/100-16 | 
| Front tyre dimensions | 70/100-19 | 
| Rear suspension travel | 287 mm (11.3 inches) | 
| Rear suspension | Single shock | 
| Front suspension travel | 274 mm (10.8 inches) | 
| Front suspension | Upside-down telescopic fork | 
| Trail | 106 mm (4.2 inches) | 
| Rake (fork angle) | 27.0° | 
| Frame type | Aluminium. Semi double cradle. | 
Physical measures and capacities | 
| Fuel capacity | 5.00 litres (1.32 gallons) | 
| Wheelbase | 1,286 mm (50.6 inches) | 
| Ground clearance | 393 mm (15.5 inches) | 
| Overall width | 757 mm (29.8 inches) | 
| Overall length | 1,903 mm (74.9 inches) | 
| Overall height | 1,161 mm (45.7 inches) | 
| Seat height | 904 mm (35.6 inches) If adjustable, lowest setting. | 
| Weight incl. oil, gas, etc | 73.0 kg (160.9 pounds) | 
Other specs | 
| Light | Dual 30W Krypton multireflector Headlights and 3.9/0.5W LED Brake light | 
| Starter | Electric | 
| Wheelbase | 1,270 mm (50.0 inches) | 
| Rear tyre | 20/10-9 | 
| Front tyre | 21/7-10 | 
| Rear Suspension | Cast aluminum swingarm w/piggyback High/Low speed compression, rebound and threaded preload adjustment, 11.0-in travel | 
| Front Suspension | Independent double wishbone, w/Kashima coated piggyback shocks, High/Low speed compression, rebound | 
| Clutch | Drive Train | 
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) | 
| Valves per cylinder | 5 | 
| Bore x Stroke | 95.0 x 63.4 mm (3.7 x 2.5 inches) | 
| Compression | 11.6:1 | 
| Model | Yamaha YFZ450X SE | 
| Color options | Team Yamaha Blue/White | 
| Factory warranty | 30 Day (Limited Factory Warranty) | 
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