Mikuni Pumper Carburetor 40mm Kit - Honda XR650R

The XR's Only Mikuni Pumper Carburetor 40mm serves as a superior stock replacement carb, particularly if you're looking for a carb that performs with the authority of a pumper carburetor, with smoother acceleration, unsurpassed reliability and versatility, particularly when considering the altitude variations that can cause standard carbs to choke up and run overly rich or gravely lean.

Unleash hidden performance within your Baja champion Honda XR650R. Its smooth bore design and accelerator pump delivers smooth and responsive acceleration for an overall increase in horsepower and torque throughout the entire power band.

The Mikuni Pumper Carburetor has a controlled velocity airflow that creates optimum fuel atomization, which results in better starting, engine response and higher RPM capability. And in some applications, you?re very likely to see improved fuel economy, if you remained a conservative rider with increased performance at your command.

This performance increase is accomplished by a flat guillotine slide and crescent shaped cutaways that are designed to precisely focus the fuel mixture. This engineering funnels the velocity through the venturi. The flat-slide design has little or no need for altitude compensation and is much easier to service and dial in for optimal perforance than the O.E.M. carburetor. Each carburetor we sell is jetted for its own specific application and comes with a cable, billet aluminum air box adapter already installed and extra main/pilot jets for fine tuning, if necessary.

FITS: Honda XR650R
ORDERING NOTES: When ordering, please indicate whether you're running a stock piston or a higher compression ratio aftermarket piston as well as the average elevation you ride.