The Yamaha TZR250 motorcycle was produced in 1990 and has a two-stroke, parallel twin-cylinder engine with a capacity of 249cc. It has a liquid cooling system, 2x Mikuni TM28SS carburetor induction, CDI ignition, and kick starting. The bike can produce a maximum power of 50 hp at 10000 rpm and a maximum torque of 35.5 Nm at 9750 rpm. The transmission is 6-speed with a final chain drive. The front suspension has a telescopic fork adjustable preload with 140mm wheel travel and the rear suspension is coil and gas spring preload, with 9-way preload positions and 100mm wheel travel. The front brake has a single 320mm disc with two-piston calipers and the rear brake has a single 210mm disc with one-piston caliper. It has a front and rear tire size of 100/80-17 and 120/80-17 respectively, with a wheelbase of 1375mm and seat height of 760mm. The dry weight is 128kg and the wet weight is 140kg, with a fuel capacity of 16 liters. It has been compared to Suzuki RGV250, Yamaha TZR250, and Kawasaki KR1 in a road test.
Technical specifications:
Make Model: Yamaha TZR 250
| Year | 1990 |
|---|---|
| Engine | Two stroke, parallel twin cylinders, read valve, |
| Capacity | 249 cc / 15.2 cu-in |
| Bore x Stroke | 56.4 x 50 mm |
| Cooling System | Liquid cooled |
| Compression Ratio | 5.9:1 |
| Induction | 2x Mikuni TM28SS carburetor |
| Ignition | CDI |
| Starting | Kick |
| Max Power | 50 hp / 36.4 kW @ 10000 rpm |
| Max Torque | 35.5 Nm / 26.2 lb-ft @ 9750 rpm |
| Transmission | 6 speed |
| Final Drive | Chain |
| Front Suspension | Telescopic fork adjustable preload |
| Front Wheel Travel | 140 mm / 5.5 in |
| Rear Suspension | Coil and gas spring preload 9-way preload position |
| Rear Wheel Travel | 100 m / 3.9 in |
| Front Brakes | Single 320mm discs 2 piston calipers |
| Rear Brakes | Single 210mm disc 1 piston caliper |
| Front Tyre | 100/80-17 |
| Rear Tyre | 120/80-17 |
| Dimensions | Length 2005 mm / 78.9 in Width 660 mm / 25.9 in |
| Wheelbase | 1375 mm / 54.1 in |
| Seat Height | 760 mm / 29.9in |
| Dry Weight | 128 kg / 282.1 lbs |
| Wet Weight | 140 kg / 308.6 lbs |
| Fuel Capacity | 16 Litres / 4.2 US gal |
| Road Test | Suzuki RGV250 Yamaha TZR250 Kawasaki KR1 Bike |
