784-430000-Y-6 Needle jet

This genuine Mikuni needle jet is a critical internal component for HSR series carburetors used on Harley-Davidson motorcycles. It works in conjunction with the jet needle to control fuel flow during mid-range throttle operation. Precision-machined from high-grade brass, this needle jet ensures consistent fuel atomization and helps maintain the correct air-fuel mixture for smooth acceleration. Replacing a worn needle jet can restore lost performance and improve fuel economy. Authentic Mikuni parts are manufactured to exact tolerances to provide the reliability required for heavy-duty V-twin applications. This needle jet is sold individually.