Yamaha TDR 250

Yamaha TDR 250

It was the first two stroke machine which used a CDI ignition and a digital advance system.

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Model year
1989
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Make
Yamaha
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Engine Power
50.99 HP (37.5 kW) @ 10000 rpm
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Top Speed
100.04 mph

Technical Specifications

Engine and transmission

  • Engine type:
    2 cylinders, 2-stroke, V-twin
  • Displacement:
    249 cc (15.21 cubic inches)
  • Bore × stroke:
    2.22 inch × 1.97 inch (oversquare - shortstroke)
  • Cooling system:
    Water cooled
  • Power:
    50.99 HP (37.5 kW) @ 10000 rpm
  • Throttle:
    Cable operated
  • Valve train:
    Reed valve, variable
  • Sparks per cylinder:
    1
  • Fuel supply system:
    Carburetor
  • Ignition type:
    Digital CDI
  • Compression:
    9:1
  • Gear box:
    Manual 6-speed
  • Clutch:
    Wet, multiple discs, cable operated
  • Final drive:
    Chain
  • Spark plug pipe type:
    NGK, BR9ES
  • Starter:
    Electric

Dimensions

  • Curb weight:
    337.3 lbs

Chassis and suspension

  • Front
    Suspension:
    Cartridge
    Brake:
    Single Disk
    Tire:
    100 / 90 R18
    Tire pressure:
    0.12 PSI, with pillion: 0.14 PSI withpilion
  • Rear
    Suspension:
    mono shock, Swingarm
    Brake:
    Disk
    Tire:
    120 / 80 R17
    Tire pressure:
    0.14 PSI, with pillion: 0.16 PSI withpilion
  • Frame type:
    steel, Double cradle frame

Other

  • ABS available:
    No
  • Power-to-weight ratio:
    0.25 KW/lbs (4.08 lbs/HP)
  • Top speed:
    100.04 mph
  • Fuel capacity:
    3.7 gals
  • Number of riders:
    2 persons

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