A-B1691785-AI SPRING-GOVERNOROne New Aftermarket Replacement Governor Spring Fits Briggs and Stratton Small Engines This governor spring is a key component of the mechanical governor system on Fits Briggs and Stratton small engines. It holds the throttle at the correct maximum speed setting and works in tandem with the governor arm to maintain consistent engine speed under varying load conditions. A worn or broken governor spring can cause engine surging, over speeding, or loss