Yamaha SR 125

Yamaha SR 125

The Yamaha SR125 is one of the oldest 125 naked type motorcycles on the roads today. It first appeared in the UK way back in 1982.

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Model year
1990
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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
---

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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