X125WC Engine - 2-Stroke Kart Racing Engine Package - TaG Karting
Regular price $2,900.00
Regular price Sale price $2,900.00
Sale Sold out

WORD Racing is pleased to be an Authorized dealer of the X125 Engines & Parts. If you're in search of the best quality TaG engine on the market, or if you're looking for a smooth TaG engine, with a powerful wide powerband, this is the engine to have.

The X125-WC engine was developed for lower cost, greater reliability, and better speed out of the box.

This next-gen TaG engine allows for more power, less vibration, external water pump, beautiful one-piece pipe and a 15500 rev limiter with 30hp!  It is now available in a junior, with restriction at the manifold, or a senior configuration.  The ever-popular Tillotson HW-32A (23mm) carburetor is used for Senior while the Tryton 27mm is used for Heavy/Masters.  See homologation pdf below for more technical information. 

*Approved by TaG USA, and IKF, as well as:

  • SoCal Major League Karting Sprint
  • Region 6 Pacific Northwest Gold Cup Series and local club series
  • NorCal Karters and NCK (sprint and road)
  • The F-Series - GearUp Challenge
  • Texas Sprint Series
  • O2S Championship Series
  • All TaG sanctioned series, and many local series

Accessories Included with Engine Package

    • Radiator
    • Adjustable radiator cover
    • Radiator mounting brackets
    • Dampeners
    • Airbox (with boot and clamp)
    • Wiring Harness
    • Pipe
    • Battery Box (with fixing hardware)
    • *Note: motor mount and battery are not included

Tuning & Setup Information

      • Fuel Mixture: 16:1, or 6% (8 ounces per gallon)
      • Carb settings for Tillotson HW-32A: L 1-1/2 to 1-3/4 ~ H 1*
      • Carb settings for Tryton HB27: L 1-1/4 ~ H 1-1/4
      • Engine Mounting: An engine plate may be required if your motor mount does not have a cut out
      • Case Oil: Case does NOT come with oil, PLEASE check prior to running. Requires 50cc or 50ML. We recommend PM Xeramic KF Kart Gear Oil or Dumonde Tech LWHS Gear Oil. The manufacturer advises changing the oil every 5 hours of operation.
      • Rev Limiter: 15,500
      • Spark Plug: BR10EG ~ gap .8 mm
      • Target EGT: 1050-1100 (Fahrenheit) *100 degrees less with Junior restrictor
      • Recommended Water Temp range: 120-130 (Fahrenheit). This engine now uses an external water pump.
        Distilled water recommended. No coolant allowed for racing, so be sure to drain it or keep it in a warm place during the winter months. Water wetter and similar products are allowed, but no more than a cap full or two are needed, to add in with the water.

* The importer recommends Low 2 TO and High 1 TO for initial break-in with the Tillotson carb, before leaning the low to 1-3/4 (range of 1-1/2 to 1-3/4).

X125-WC Documentation

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