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Mikuni HSR series carburetors are simply the best. Our favorite carburetor for your everyday performance needs. MAXIMUM adjustablity to dial-in your ride to get the optimal performance, throttle response and appropriate AFR.

  • 5 Circuit adjustable carb
  • Available in standard or highly-polished finishes
  • HSR smoothbore carbs offer excellent throttle response and control
  • Well made for years of dependable service
  • Rebuild kits and individual repalcement parts available in store
  • Various jet and needle ranges and needle adjustments
  • On the fly idle adjustment cable no tools required
  • Swivel fuel inlet
  • Available in 42mm / 45mm / 48mm bores
  • 48mm will require special manifold and seal
  • Made in Japan

NOTE: Choke cable included, except for the TM42-6, which uses stock choke cable from CV-type carb.

NOTE: Mikuni carburetors are a dual spigot carb, we recommend running Airbox adapter HS42/001-K to accept standard CV carb style intakes (verify backing plate spacing). Sold separately AVAILABLE HERE:


NOTE: Kits are not for use on models with cruise controls.