VM14/241 Starter plunger spring

The Mikuni starter plunger spring is a specialized tension component for the enricher circuit of HSR 42, 45, and 48mm carburetors. This spring provides the necessary return force to seat the starter plunger when the choke is deactivated, ensuring the enrichment circuit is fully closed during normal operation. Over time, original springs can lose their tension or become corroded, leading to a rich-running condition. Replacing a worn spring with this genuine Mikuni part restores the correct mechanical action to the cold-start system of your Harley-Davidson. This starter plunger spring is sold individually and is essential for a complete carb rebuild.