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TBParts - Vintage Honda 88cc big bore & Carb kit
All ATC70

Vital Information
Part No TBW0933-ATC70
Stock Level In Stock

Same great quality CRF50/XR50 88cc kits now for Vintage

TB Stock Head, Vintage 88cc Bore Kit & 20mm Carb Kit

Installation Note: It will save a lot of time and effort if the oil pump is installed while installing the bore kit (requires cylinder removal). See the Performance Info section for additional information on our performance parts.

*NOTE: Throttle cable is for use with CR type twist throttle

Key Features:

  • Lightweight aluminum cylinder with steel sleeve
  • Cast in mounts on cylinder for aftermarket skid plates
  • Oversized cooling fins on cylinder for efficient heat dissipation
  • High compression 52mm piston with rings, pin, & clips
  • Head gasket kit


  • High volume oil pump - TBW0225-6V


  • ATC70 - All years

Kit Includes:

  • TBW0219 - Piston
  • TBW0206 - Gasket set
  • TBW0156 - Cylinder
  • TBW0125 - Carburetor
  • TBW0273 - Intake kit
  • TBW0301 - Throttle cable
  • TBW0174 - Air filter
  • TBW0294 - Main jet kit

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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.


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