Yamaha SR 250

Yamaha SR 250

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Model year
1990
make icon
Make
Yamaha
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Engine Power
19.99 HP (14.7 kW) @ 7700 rpm
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Top Speed
74.56 mph

Technical Specifications

Engine and transmission

  • Engine type:
    1 cylinders, 4-stroke, Single
  • Displacement:
    239 cc (14.6 cubic inches)
  • Bore × stroke:
    2.89 inch × 2.22 inch (oversquare - shortstroke)
  • Cooling system:
    Air cooled
  • Power:
    19.99 HP (14.7 kW) @ 7700 rpm
  • Throttle:
    Cable operated
  • Valves per cylinder:
    2
  • Sparks per cylinder:
    1
  • Fuel supply system:
    Carburetor
  • Ignition type:
    TCI (Transistor Controlled Ignition)
  • Compression:
    9.2:1
  • Engine mounting:
    Transverse
  • Lubrication system:
    Wet sump
  • Gear box:
    Manual 5-speed
  • Clutch:
    Wet, cable operated
  • Final drive:
    Chain
  • Spark plug pipe type:
    NGK, BP7ES
  • Motor oil:
    20W/40
  • Starter:
    Electric

Dimensions

  • Curb weight:
    297.6 lbs

Chassis and suspension

  • Front
    Suspension:
    Cartridge
    Brake:
    Drum
    Tire pressure:
    0.12 PSI, with pillion: 0.14 PSI withpilion
  • Rear
    Suspension:
    twin shock, Swingarm
    Brake:
    Drum
    Tire:
    120 / 90 R16
    Tire pressure:
    0.14 PSI, with pillion: 0.16 PSI withpilion
  • Frame type:
    steel, Single cradle frame

Other

  • ABS available:
    No
  • Power-to-weight ratio:
    0.11 KW/lbs 9.18 lbs/HP)
  • Top speed:
    74.56 mph
  • Fuel capacity:
    2.64 gals
  • Number of riders:
    2 persons

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