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Yamaha TZR250

Yamaha TZR250

Yamahas TZR range took over from the RD range in the UK as the two-stroke sports bike in the early 1990’s. The original 250 1KT became our 2MA. The later 3MA (reverse cylinder) & 3XV (V-Twin) followed. All inspired by Yamahas ‘TZ’ race bikes, they all feature light chassis, high power engines & powerful brakes.

The super trick 3MA & 3XV feature many high performance technologies that were the zenith of two stroke engine development. Dry clutch ‘SP’ variants also appeared for the sports production racing series. All TZR models are desirable & make an excellent choice for collectors & classic racers.

specification

Engine

Type – Liquid-cooled, reed valve induction, reverse cylinder, two-stroke, parallel twin.
Capacity – 249cc
Bore x Stroke – 56 x 50.7mm
Compression Ratio – 7.4:1
Ignition – CDI
Fuel System – 2  x Mikuni TM32SS flatslide


Transmission

Primary/Final Drive – Gear / Chain
Clutch – Wet, Multiplate
Gearbox – Six Speed Cassette


Chassis

Frame – Twin-spar aluminium Deltabox
Front Suspension – 41mm rwu cartridge, preload adjustment
Rear Suspension – Rising-rate monoshock, preload adjustment
Front Brake – 2 x 298mm floating discs, Sumitomo 4-Piston calipers
Rear Brake – 1 x 210mm disc, opposed-piston caliper
Wheels – Three spoke alloy
Front Tyre – 110/70-17
Rear Tyre – 140/60 18

Dimensions

Dry Weight – 136kg (299.9lb)
Wheelbase – 1380mm (53.82”)
Seat Height – 770mm (30.3”)
Fuel Capacity – 16 Litres (3.52 Gallons)


Performance

Top Speed – 112 MPH
Claimed Power – 45 bhp@9500 rpm
Claimed Torque – 27.5lb.ft@8000rpm
Fuel Consumption – 33 mpg
Price New- Japan-only model.