• High quality replica of 40mm Keihin Constant Vacuum with accelerator pump.
  • Fangster reproduction to meet OEM spe cifications, perfectly fits OE accessories.
  • Available in polished-chrome and gloss black.
  • Include Fangster top cover, OE style choke and top choke mount, quick adjustable idle screw and idle-air screw.
  • Also built-in high performance complete needle assemblies with five ranges of adjustment, main and pilot jets.
  • Designed to recalibrate OEM stock carburetors.