Z50 / XR50 / CRF50 / XR70 / CRF70>
TB Stock Head, 88cc Bore Kit, 20mm Carb Kit & Cam - 92-09 Models


Price: $229.00
Availability: in stock
Prod. Code: TBW0930

88cc Big Bore kit, 20mm Carburetor kit, and Race Cam Performance Kit:

  • 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 performance race camshaft for stock head
  • Main jet kit
  • 20mm Performance carb assembly. Includes: 20mm carb, intake, heatstop, gaskets, mounting hardware/wrench, angled dual foam air filter and long throttle cable.

Easily double your power and fun with this quality, yet economical bore kit!!  We recommend purchasing a high volume oil pump 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).







© 2009 Firepower Minis.  All Rights Reserved.  All trademarks and brands are the property of their respective owners.