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1990 YAMAHA YZ125 Parts & Accessories

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Displaying parts for your 1990 YAMAHA YZ125

Change or remove machine

See stock sizes for this machine

  • Front Tire:80/100X21
  • Rear Tire:100/90X19
  • Front Sprocket:13 Tooth
  • Rear Sprocket:51 Tooth
  • Chain:520X116
  • Spark Plug:B9EG

How To Rebuild the Top End on a Yamaha YZ125 & YZ125X

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