| TECHNICAL SPECIFICATION |
|---|
| Model ID |
|---|
| Manufacturer (Make) | Yamaha |
| Model Name | YZ85 |
| Year | 2011 |
| Category(class) | Motocross / Dirtbike |
| Engine |
|---|
| Engine Capacity (Displacement) | 85 ccm (5.19 cubic inches) |
| Engine Type | Single cylinder, two-stroke |
| Bore x Stroke | Ø47.5 mm x 47.8 mm (Ø1.87 inches x 1.88 inches) |
| Bore/Stroke Ratio | 0.99 |
| Compression Ratio | 8.2:1 |
| Fuel System(Carburetion) | Carburettor. Keihin PWK 28 |
| Ignition | CDI |
| Lubrication System | Dry sump |
| Cooling System | Liquid |
| Powertrain |
|---|
| Gearbox | 6 speed |
| Transmission (Final Drive) | Chain |
| Chassis/Suspension/Brakes |
|---|
| Frame Type | Aluminium |
| Front Suspension | Inverted fork |
| Front Suspension Travel | 274 mm (10.79 inches) |
| Rear Suspension | Single shock |
| Rear Suspension Travel | 282 mm (11.1 inches) |
| Front Brakes | Single disc. Wave |
| Front Brakes Diameter | Ø220 mm (Ø8.66 inches) |
| Rear Brakes | Single disc. Wave |
| Rear Brakes Diameter | Ø190 mm (Ø7.48 inches) |
| Front Tire | 70/100-M17 |
| Rear Tire | 90/100-M14 |
| Dimensions |
|---|
| Overall Length | 1821 mm (71.69 inches) |
| Overall Width | 757 mm (29.8 inches) |
| Overall Height | 1161 mm (45.71 inches) |
| Seat Height | 864 mm (34.02 inches) |
| Wheelbase | 1257 mm (49.49 inches) |
| Ground Clearance | 351 mm (13.82 inches) |
| Curb Weight | 70.8 kg (156 lb) |
| Fuel Capacity | 4.92 litres (1.3 gallons) |
| Performance |
|---|
| Top Speed | - |
| Acceleration (dart, speedup) time | |
| 0-100 km/h | - |
| 0-60 mph | - |
| 1/4 mile | - |
| 60 to 140 km/h, highest gear | - |
