| Attribute | Value |
| General |
| Production from | 1997 year |
| Make | Yamaha |
| Model | Yamaha WR 250Z |
| Category | Enduro / offroad |
| Engine and transmission |
| Engine type | Single cylinder, two-stroke |
| Valves per cylinder | Add |
| Fuel system | Carburettor. Mikuni VM38SS |
| Engine details | Add |
| Displacement | 250 cm³ |
| Power | Add |
| Max RPM | Add |
| Fuel consumption | Add |
| Cooling system | Liquid |
| Transmission type,final drive | Chain |
| Torque | 46 Nm |
| Bore | 68 mm |
| Stroke | 68.8 mm |
| Gearbox | 5-speed |
| Greenhouse gases | Add |
| Fuel control | Membrane & power valve |
| Emission details | Add |
| Driveline | Add |
| Ignition | Add |
| Clutch | multi-plate wet clutch |
| Lubrication system | wet sump |
| Compression | 10.9:1 |
| Exhaust system | Add |
| Chassis |
| Front suspension | Inverted forks |
| Rear suspension | Monocross |
| Front brakes | Single disc. 2-piston caliper |
| Rear brakes | Single disc |
| Diameter | Add |
| Frame type | CrMo streel |
| Front tyre | 80/100-21 |
| Rear tyre | 110/100-18 |
| Seat | Add |
| Wheels | Add |
| Front wheel travel | 300 mm |
| Rear wheel travel | 315 mm |
| Trail | Add |
| Rake (fork angle) | Add |
| Other |
| Battery capacity | Add |
| Starter | Kick |
| Color options | |
| Carrying capacity | Add |
| Light | Add |
| Instruments | Add |
| Electrical Voltage | Add |
| Dimensions |
| Wheelbase | 1,496 mm |
| Kerb weight | 114.3 kg |
| Dry weight | 103 kg |
| Power/weight ratio | Add |
| Overall height | 1,300 mm |
| Overall length | 2 mm |
| Overall width | 827 mm |
| Seat height | 982 mm |
| Alternate seat height | Add |
| Ground clearance | 379 mm |
| Front percentage of weight | Add |
| Rear percentage of weight | Add |
| Performance |
| Top speed | 114 km/h |
| Acceleration 0-100 km/h | Add |
| Length | Add |
| Reserve fuel capacity | 1.8 l |
| Fuel capacity | 13 l |
| Oil capacity | Add |
| Width | Add |
| Height | Add |