The Briggs & Stratton 691903 Rope Starter Pulley supports the recoil starting system for reliable manual engine starting. Designed as a replacement starter pulley, it fits compatible Briggs & Stratton engines to guide and wind the starter rope within the recoil assembly. It works by rotating as the starter rope is pulled and retracting the rope after use through the recoil mechanism. ... https://www.wholetoolbox.com/briggs-stratton-691903-rope-starter-pulley