A-B1690710-AI SPRING-GOVERNOROne New Aftermarket Replacement Governor Spring Fits Briggs and Stratton (B&S) Small Engines This governor spring is a key component of the engine speed control system on Fits Briggs and Stratton small engines. It maintains proper tension on the governor linkage, regulating throttle position to keep the engine running at a steady, consistent speed under varying load conditions. A worn or broken governor spring can cause engine surging, over revving,