699056 replacement part number:699056, 490-404, compatibles with BS MODELS : 122H02 122K02. 790849 replacement part number:790849, this is the spring that goes from the choke arm above carburetor. Just what you needed to fix the choke on your mower. After installing this to replace the missing air vane spring, Your mower starts easily with one pull. This spring is for Briggs & Stratton and is very easy to install. This spring closes the throttle plate when the engine is cold. Use this to repair your auto choke for Troy-bilt Craftsman Toro Recycler Brute Lawnmower with a BS series motor. Chokeless engines wont start without the air vane spring. The air vane takes the place of a traditional choke. Used to replace missing air vane spring on lawnmower that had BS engine. Well made and finished. Works like an original one. It restored the proper tension on BS motor’ s governor , eliminated the need to keep bending the tab and risking breaking it off as you have in the past.F