Yamaha TZR250 (1988)
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
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