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.
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
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