Yamaha SR 125

Yamaha SR 125

The Yamaha SR125 was a single cylinder, four-stroke Naked motorcycle produced by Yamaha.

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Model year
1992
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Make
Yamaha
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Engine Power
11.96 HP (8.8 kW) @ 8500 rpm
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Top Speed
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Technical Specifications

Engine and transmission

  • Engine type:
    1 cylinders, 4-stroke, Single
  • Displacement:
    124 cc (7.58 cubic inches)
  • Bore × stroke:
    2.24 inch × 1.92 inch (oversquare - shortstroke)
  • Cooling system:
    Air cooled
  • Power:
    11.96 HP (8.8 kW) @ 8500 rpm
  • Torque:
    10 Nm (7.38 lb-ft) @ 8000 rpm
  • Throttle:
    Cable operated
  • Valves per cylinder:
    4
  • Sparks per cylinder:
    1
  • Fuel supply system:
    Carburetor
  • Ignition type:
    TCI (Transistor Controlled Ignition)
  • Engine mounting:
    Transverse
  • Lubrication system:
    Wet sump
  • Gear box:
    Manual 5-speed
  • Clutch:
    Wet, multiple discs, cable operated
  • Final drive:
    Chain
  • Spark plug pipe type:
    NGK, D8EA
  • Motor oil:
    20W/40

Dimensions

  • Seat height:
    28.7 inch
  • Dry weight:
    240.3 lbs

Chassis and suspension

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

Other

  • ABS available:
    No
  • Number of riders:
    2 persons

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