what kind of mower ? i had a craftsman once and they have a really bad float bowl made from plastic pretty lame idea but when it got hot it warped , and i couldnt figure it out for the life of me but replaced it and it ran fine tell it heated up again a few months later , toro ftw also last case resort home depots in my area anyway sells referbs barly used i got a smoking deal on a 500$ mower self driver electric start ect for 150$ had it 5 years runs like a champ , referbs for the win and you cant beat the cost ,