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TBParts - 20mm Carb Kit
for Z50 XR-CRF70 and XR-CRF50 with Race Head

Vital Information
Part No TBW0957
Stock Level 7 Left

TB 20mm Performance Carb Kit - All Honda 50/70 88cc Kit 

Exceeds OEM Standard equipment

Z50 CRF70 and CRF50 XR50 with Race Head

Kit includes the carb, intake, heatstop, gaskets, mounting bolts/wrench, air filter and throttle cable

Throttle cable is provided that allows for more adjustments and will work on wider selection of throttles

We highly recommend this carb kit for use with bore kits (88cc).

Key Features:

  • Kit includes everything for the carb setup
  • Works great with race head applications
  • Affordable, simple upgrade while maintaining reliability


  • Sta-bil fuel stabilizer - W-57-1109
  • TB 12 way rotating spacer 20mm - TBW0900
  • Pre-filter - WHS-1664
  • Uni foam filter spray - W-82-1000
  • Main jet kit - TBW0294
  • Pilot jet kit - TBW0478
  • (Larger) Pilot jet kit - TBW0798


  • Honda Z50 - 1988-1999 with 88cc kit 
  • Honda XR50 - All Years with 88cc kit and Race Head 
  • Honda CRF50 - All Years with 88cc kit and Race Head
  • Honda CRF70
  • Honda XR70
  • Honda TRX70
  • Honda ATC70
  • Honda CT70
  • Honda CL70
  • Honda SL70
  • Honda XL70

 Kit Includes:

  • TBW0125 - 20mm Carb
  • TBW0273 - Intake Kit for Race Head
  • TBW0301 - Throttle Cable
  • TBW0398 - Air Filter

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Since 2004, every purchase from TBolt USA includes access to technical support from our staff of experts and our online Pit Bike Technical Info Database!

We have all necessary support parts on hand.

Most orders ship same, or next business day, unless otherwise noted above.