The products that started the Dynojet fuel tuning legacy, our dirt bike carburetor Jet Kits, will increase your power and smoothness throughout the entire rev range. Whether your bike is stock, heavily modified, or created for high-speed racing, our Jet Kits can tune your air/fuel ratio to perfection with immediate results. That way, you can ensure your dirt bike can run powerfully without hindering your fuel economy. With an increased power output of 5-8% and a fully adjustable design, our dirt bike jets are the perfect companions to any rider. Use the vehicle selector at the top of this page to find jets suitable for your dirt bike model. Once you install our jets, you’ll see how easy it is to find the perfect air/fuel ratio today.