The BRIGGS STRATTON 691807 is a governed idle spring used in small engine governor assemblies. This spring maintains proper carburetor throttle tension at idle, allowing the governor system to regulate engine speed under varying load conditions. It is a direct OEM replacement component installed by small engine technicians, outdoor power equipment mechanics, and experienced DIYers performing carburetor or governor linkage service on Briggs and Stratton powered equipment.
The 691807 governed idle spring is suited for Briggs and Stratton small engines commonly found in walk-behind lawn mowers, riding mowers, and other outdoor power equipment. It is typically replaced during governor linkage repairs, carburetor rebuilds, or when the engine exhibits hunting, surging, or erratic idle speed caused by a worn or broken idle spring.
Designed as an OEM-style replacement governed idle spring for applicable Briggs and Stratton small engines. Consult the Briggs and Stratton parts lookup using the engine model, type, and code numbers to confirm fitment before installation.
Installation is typically performed by a small engine technician or qualified outdoor power equipment mechanic. Disconnect the spark plug wire before beginning any service on the engine governor or carburetor linkage. Use care when removing and installing small governor linkage springs to avoid bending or distorting the spring or surrounding linkage components. Refer to the applicable Briggs and Stratton service manual for the correct spring routing and attachment points for the specific engine model.