Briggs & Stratton 5042K and 280399S Genuine Starter Rope with Handle 691915. This starter rope and grip improves your push lawn mower s rewind function. If the system binds when you pull it or does not rewind freely it may be time to replace it. The rewind starting/recoil system is operated by pulling a starter rope. The rope is attached to a pulley and return spring that spin the flywheel to start the spark plug firing and the engine running. Used on select Briggs & Stratton engines this Original Equipment Manufacturer part ensures proper fit and performance to maintain the life of your Briggs & Stratton engine.