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.

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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