VM14SC13/89 Accelerator pump spring

This genuine Mikuni accelerator pump spring is designed for use in HSR series carburetors, which are widely used on Harley-Davidson V-twin engines. The spring provides the necessary tension to return the accelerator pump plunger to its starting position after the throttle is released. Made from high-quality spring steel, it is engineered to maintain its tension and resistance through countless cycles. A weak or broken spring can lead to poor throttle response and inconsistent fuel delivery during acceleration. Using authentic Mikuni parts ensures the spring rate matches the original design. This spring is sold individually.