1979 Yamaha RX 125
          
      General motorcycle information
Engine and transmission
Displacement
        
                      7.63 cubic inches            (125.0 ccm)
                  
      Engine type
        
          Single cylinder, 2 stroke        
      Power
      
                  13.0 horsepowers          (9.7 kiloWatts)
           at 7000 RPM              
    Torque
      
                              9.84 pound-foot/lbf-ft            (13.34 Nm / 1.36 kgf-m)
                     at 7000 RPM              
    Compression
      
                  6.9:1
              
    Bore x stroke
      
                  3.42 x 3.05 inches (56.0 x 50.0 mm)              
    Fuel system
      
                  Carburettor              
    Fuel control
        
          Port control        
      Cooling system
      
                  Air              
    Gearbox
      
                  5-speed              
    Transmission type, final drive
      
                  Chain              
    Starter
      
                  Kick              
    Fuel consumption
      
                  -
              
    Top speed
      
                  -
              
    Chassis, suspension, brakes and wheels
Front tyre
        
          3.00-18        
      Rear tyre
        
          3.00-18        
      Front brake
      
                                      Single disc                                            
    Rear brake
      
                                                          Expanding brake (drum)                        
    Physical measures and capacities
Dry weight
      
                  211.6 pounds (96.0 kg)              
    Seat height
      
                  -
              
    Wheelbase
      
                  75.7 inches (1240 mm)              
    Overall length
        
          116.8 inches (1915 mm)        
      Overall width
        
          44.5 inches (730 mm)        
      Overall height
        
          64.7 inches (1060 mm)        
      Ground clearance
      
                  9.8 inches (160 mm)              
    Fuel capacity
      
                  2.64 gallons (10.0 litres)              
    Oil capacity
      
                  -
              
    Further motorcycle information
More specs
      
    Ask questions
      
    Insurance costs
        
          Get estimated US insurance cost with a quote from Insurifinder.com.