| MODEL | YAMAHA TZR 250 R 1991 |
| Year | 1991 |
| Engine Type | Two stroke, 90 degree V-Twin cylinder, reed valve induction |
| Displacement / Capacity | 249.7 cc / 15.2 cu in |
| Bore X Stroke | 56 x 50.7 mm |
| Compression Ratio | 7.5:1 |
| Cooling System | Liquid cooled |
| Max Power | 33.6 kW / 45 hp @ 9500 rpm |
| Max Torque | 40 Nm / 3.8 kgf-m @ 8000 rpm |
| Ignition | Microcomputer controlled |
| Induction | 2x Mikuni flatside carburetor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 6 speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | 39 mm upside-down forks |
| Rear Suspension | Monocross linkage |
| Front Brakes | 2x disc, 4 piston calipers |
| Rear Brakes | Single disc, 2 piston caliper |
| DIMENSION SPECS | |
| Overall Length | 1960 mm / 77.1 in |
| Overall Width | 680 mm / 26.7 in |
| Overall Height | 1075 mm / 42.3 in |
| Seat Height | 780 mm / 30.7 in |
| Wheelbase | 1340 mm / 52.8 in |
| Ground Clearance | — |
| Dry Weight | 126 kg / 277.8 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 110/70 Z17 |
| Rear Tyre | 150/60 Z17 |
| FUEL SYSTEM | |
| Fuel Capacity | 15 Litres / 4.0 US gal |
| Fuel Consumption | — |
| Top Speed | 180.2 km/h / 112 mph |
Road-going replica of the Yamaha 250 GP racer, powered by a liquid-cooled reed-valve 90-degree V-twin two-stroke in an aluminium Deltabox chassis with upside-down forks. Power is quoted at 45 hp, the restricted Japanese-market figure. It is part of the 3XV generation sold from 1991. The motorcyclespecs page is a 1991 comparison test against rivals such as the Suzuki RGV250 and Kawasaki KR-1S.
