Yamaha TZR250 (1989)

The 1989 Yamaha TZR250 is a two-stroke motorcycle with a parallel twin-cylinder engine and a 249 cc capacity. It has a liquid-cooled cooling system and a compression ratio of 5.9:1. The bike has a maximum power of 50 hp and a maximum torque of 35.5 Nm. It has a six-speed transmission and a chain final drive. The front suspension is a telescopic fork with adjustable preload, while the rear suspension is a coil and gas spring with nine-way preload positions. The brakes consist of single discs and piston calipers, with the front being 320mm and the rear being 210mm. The front and rear tires are 100/80-17 and 120/80-17, respectively. The bike has a length of 2005 mm, a width of 660 mm, and a wheelbase of 1375 mm. The dry weight is 128 kg and the wet weight is 140 kg, with a fuel capacity of 16 litres. The Yamaha TZR250 was tested against the Suzuki RGV250 and Kawasaki KR1 Bike.

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Technical specifications:

Make Model: Yamaha TZR 250

Year: 1989

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