Yamaha TZR250 (1992)

The Yamaha TZR 250R is a 1992 motorcycle with a two-stroke, 249.7cc V-Twin engine that has a compression ratio of 7.5:1 and is cooled by liquid. The bike has a maximum power of 45 hp and max torque of 3.8 kgf-m at 8000 RPM. It is equipped with a 6-speed transmission and chain final drive. The front and rear suspension are monocross linkage and upside-down forks, respectively, and it has front and rear brakes that are 2X disc 4 piston calipers and a single disc 2 piston caliper, respectively. The bike weighs 126 kg, has a fuel capacity of 15 litres and can reach a top speed of 180.2 km/h. Road tests in 1991 revealed its capabilities.

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Technical specifications:

Make Model: Yamaha TZR 250R

Year: 1992

Engine: Two stroke, 90 degrees V-Twin cylinder, read valve induction

Capacity: 249.7 cc / 15.2 cu-in

Bore x Stroke: 56 x 50.7 mm

Cooling System: Liquid cooled

Compression Ratio: 7.5:1

Induction: 2x Mikuni flatside carburetor

Ignition: Microcomputer controlled

Starting: Kick

Max Power: 45 hp / 33.6 kW @ 9500 rpm

Max Torque: 3.8 kgf-m / 40 Nm @ 8000 rpm

Transmission: 6 Speed

Final Drive: Chain

Front Suspension: 39mm Upside-down forks

Rear Suspension: Monocross linkage

Front Brakes: 2X disc 4 piston calipers

Rear Brakes: Single disc 2 piston caliper

Front Tyre: 110/70 Z17

Rear Tyre: 150/60 Z17

Dimensions: Length 1960 mm / 77.1in Width 680 mm / 26.7 in Height 1075 mm / 42.3 in

Wheelbase: 1340 mm / 52.8 in

Seat Height: 780 mm / 30.7 in

Dry Weight: 126 kg / 277.8 lbs

Fuel Capacity: 15 Litres / 4.0 gal

Top Speed: 180.2 km/h / 112 mph

Road Test: Motosprint 1991 Performance Bike 1991