IDK? Got to figure it out, cost to much to rebuild, I have got plenty of maybe's? Going to look at it closer. Bryson is sale'n the engine now BUT! When I finely found the web site, the only contact is a E Mail and l have not hard from them yet? Going to tare into it later, where getting a lot of hard rain now, almost a week now, then l'll have to mow! Always something! Thanks, l'll do something even if it's wrong! LOL....