New Koso Carburetors

Our Koso KCR carburetor was designed to maximize the air/fuel ratio for better performance. Built from the best quality components, this 28 mm carburetor offers many customization options, such as, various jet and needle sizes.

The KSR carburetor features a semi-flat D-style throttle valve that increases the fuel flow for a better throttle reaction. It also reduces the incomplete combustion phenomenon, and therefore improves the combustion efficiency. Available in 4 different sizes and easy to adjust and install, this carburetor will allow you to set-up the ideal air/fuel ratio for better performance.

For more details, visit our Carburetor section.