2-Stroke Dirt Bike Carburetor Upgrade Ready to use complete 2-stroke dirt bike carb upgrade for all models in fitment. Check out the options and upgrades above to further enhance the performance and feel of your motorcycle. What’s included in the complete Keihin carburetor? This Complete Keihin Carb was fully Manufactured and assembled in Japan 🇯🇵 Jets and needle Throttle slide Float bowl Pink Hoses Choke Knob Air/Fuel Screw Idle Adjuster Mid Body Throttle Spring & Cap Float Needle Seat complete throttle housing and cable. Complete Genuine Keihin of Japan Assembly Kit, Available in 3 sizes: 36mm – Low and best throttle response 38mm – Most popular and all-around power 39mm – Highest overall power Product info for this Genuine Keihin OEM Carburetor This is NOT an aftermarket Carburetor, these original carbs can cost upwards of $800 U.S.D. from the Dealer This dirt bike carburetor kit is ready to use on any two-stroke dirt bike and eliminates any wiring issues with a more simplistic bolt-up and ready-to-use carburetor We recommend the new throttle assembly option for older dirt bike models Carburetor intake side boot sizes may vary and some intakes can get stiff over time, so it is best to heat or replace the rubber mounting for easier installation.