742192 26 Description Starter Plunger

The Mikuni HSR Starter Plunger is a vital internal component for the cold-start enrichment system of HSR series carburetors. This plunger controls the fuel flow when the choke is activated, ensuring reliable ignition in various weather conditions. Precision-machined by Mikuni, it provides a perfect seal when closed to prevent fuel leaks into the intake tract during standard operation. For Harley-Davidson motorcycles equipped with Mikuni performance carburetors, maintaining this plunger is key to consistent starting and smooth warm-up cycles. As a genuine replacement part, it offers the exact fit and finish required to restore the functionality of the carburetor's starter circuit without the need for modifications.