| MODEL | YAMAHA WR 250Z 1998 |
| Year | 1998 |
| Engine Type | Two stroke, single cylinder |
| Displacement / Capacity | 249 cc / 15.2 cu in |
| Bore X Stroke | 68 x 68.8 mm |
| Compression Ratio | 10.9:1 |
| Cooling System | Liquid cooled |
| Max Power | 37.2 kW / 49.8 hp @ 8250 rpm |
| Max Torque | 44.5 Nm / 4.69 kgf-m @ 7500 rpm |
| Ignition | CDI |
| Induction | Mikuni VM38SS carburettor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | Premix |
| Gear Box | 5 speed |
| Clutch | Multi-plate wet clutch |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | CrMo steel |
| Front Suspension | 43 mm inverted fork, 300 mm / 11.8 in travel |
| Rear Suspension | Monocross swingarm, 315 mm / 12.4 in travel |
| Front Brakes | Single 204 mm disc |
| Rear Brakes | Single 189 mm disc |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 978 mm / 38.5 in |
| Wheelbase | 1480 mm / 58.2 in |
| Ground Clearance | 398 mm / 15.6 in |
| Dry Weight | 103 kg / 227 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 80/100-21 |
| Rear Tyre | 110/100-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 13 Litres / 3.4 US gal |
| Fuel Consumption | — |
| Top Speed | — |
A liquid-cooled two-stroke enduro bike built on the YZ250 motocross platform, aimed at riders who wanted a light, powerful off-roader. It was a premix-lubricated, kick-start-only machine with long-travel inverted forks and disc brakes at both ends. The 1998 listing is figure-for-figure the same as the 1997 one.
