The Yamaha TZR 250 is a two-stroke motorcycle with a parallel twin-cylinder, rear valve engine and a capacity of 249cc or 15.2 cubic inches. It has a liquid-cooling system, 2x Mikuni TM28SS carburetor induction, and CDI ignition. The bike has a kick starting system and a maximum power output of 50 horsepower or 36.4 kW at 10,000 rpm. Its maximum torque is 35.5 Nm or 26.2 lb-ft at 9,750 rpm. The 6-speed transmission and chain final drive offer smooth acceleration.
The motorcycle has a telescopic fork adjustable preload front suspension with a wheel travel of 140 mm or 5.5 inches. Its rear suspension is a coil and gas spring preload 9-way adjustable position, with a wheel travel of 100 mm or 3.9 inches. The front brakes consist of a single 320 mm diameter disc with 2-piston calipers, while the rear has a single 210 mm diameter disc with a 1-piston caliper. The front tyre is 100/80-17, and the rear tyre is 120/80-17. The bike’s dimensions are 2005 mm (length) x 660 mm (width) x 1375 mm (wheelbase).
The Yamaha TZR 250 has a seat height of 760 mm or 29.9 inches, a dry weight of 128 kg or 282.1 lbs, and a wet weight of 140 kg or 308.6 lbs. It has a fuel capacity of 16 liters or 4.2 US gallons. The bike was tested by Motociclismo in 1987 and was part of a bike magazine group test in the same year.
Technical specifications:
Make Model: Yamaha TZR 250
| Year | 1988 |
|---|---|
| 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 liters / 4.2 US gal |
| Road Test | Motociclismo 1987 Bike magazine Group test 1987 |
