Yamaha TDR250 (1988-89)

The Yamaha TDR 250 was a motorcycle model produced in 1988-89. It had a 249cc two-stroke, parallel twin cylinder engine with YPVS and autolube lubrication. Its maximum power output was 46 hp at 10000 rpm, and maximum torque was 3.7 kgf-m at 8500 rpm. The bike had a 6-speed transmission with a chain final drive. The front and rear suspensions had adjustable preload (7-way for the front and rising rate for the rear) and the brakes were single disc with two-piston calipers in the front and single caliper in the rear. The TDR 250 had a fuel capacity of 14 liters and weighed 153kg when wet. Its top speed was 175 km/h and it could brake from 60-0 in 14.0m or 100-0 in 38.7m. The dimensions of the TDR 250 were Length 2145mm, Width 785mm, Height 1215mm, Wheelbase 1385 mm, Seat Height 820mm and Ground Clearance 230mm. Its average fuel consumption was 15.9lm/lit and standing 1/4 mile time was 13.6 seconds with a top speed of 152.8 km/h.

Technical specifications:

Make Model: Yamaha TDR 250

Year: 1988 – 89
Engine: Two stroke, parallel twin cylinder, read valve, YPVS
Capacity: 249 cc / 15.2 cu-in
Bore x Stroke: 56.4 50 mm
Cooling System: Liquid cooled
Compression Ratio: 5.9:1
Lubrication: Autolube
Induction: 2x 28mm TM28SS Mikuni carburetors
Ignition: Transistorized
Starting: Kick
Max Power: 46 hp / 37 kW @ 10000 rpm
Max Torque: 3.7 kgf-m / 26.7 lb-ft @ 8500 rpm
Transmission: 6 Speed
Final Drive: Chain
Front Suspension: Air assisted telescopic forks 7-way adjustable preload
Rear Suspension: Single shock rising rate adjustable preload
Front Brakes: Single 320mm disc 2 piston calipers
Rear Brakes: Single 210mm disc single piston caliper
Front Tyre: 110/90-18
Rear Tyre: 120/80-17
Dimensions: Length 2145 mm / 84.4 in Width 785 mm / 30.9 in Height 1215 mm / 47.8 in
Wheelbase: 1385 mm / 54.5 in
Seat Height: 820 mm / 32.2 in
Ground Clearance: 230 mm / 9.0 in
Dry Weight: 137 kg / 302 lbs
Wet Weight: 153 kg / 337 lbs
Fuel Capacity: 14 Litres / 3.6 US gal
Consumption Average: 15.9 lm/lit
Braking 60 – 0 / 100 – 0: 14.0 m / 38.7 m
Standing 1/4 Mile: 13.6 sec / 152.8 km/h
Top Speed: 175 km/h