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1972 YZ623C

Collection items

(1972 / Racing Machine)


This was a GP125 factory machine that took the engine of the AX125 (AS3) production sport bike as its base. When Yamaha ceased official factory participation in GP racing in 1969, it developed a 125cc road racer that met the racing regulations put in place from 1970 for 2-cylinder machines with six gears or less, and supplied it to Yamaha importer-run teams and the like. The YZ623C had a new short-stroke, liquid-cooled engine with a dry clutch, and Kent Andersson and Chas Mortimer rode it to finish 2nd and 3rd in the ranking in 1972.

  • Engine type: Liquid-cooled, 2-stroke, in-line 2-cylinder, 124cm³
  • Piston intake valve
  • Transmission: 6-speed
  • Maximum power output: Over 23.5kW (32PS) / 14,200r/min

*All figures, etc. in a model's description or specifications are from when the model was originally released.

Notice: The coloring and logos on the models on display have been reproduced to match the actual appearance in their day, and in the case of tobacco maker logos, their reproduction is in no way intended as promotion of the products or brands involved. The Yamaha Motor group accepts no responsibility regarding the damaging effects of smoking on health, etc.

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