786-27001-4.2 Needle valve assy

This genuine Mikuni needle valve assembly is designed specifically for HSR 42 and HSR 45 carburetors, which are widely used as performance upgrades on Harley-Davidson motorcycles. The assembly includes the needle and the seat, working together to regulate the flow of fuel into the float bowl based on the position of the float. Precision-machined components ensure a perfect seal when the bowl is full, preventing flooding and ensuring consistent engine performance. Choosing authentic Mikuni parts ensures the correct flow rate for these specific carburetor sizes. This needle valve assembly is sold individually.