Question about Craftsman 20 Hp 42" Deck Lawn Tractor

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I started my craftsman 21hp 42in deck today it had a rough idle with backfire and when engade mower it seemed to not have enough power

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Backfiring is a sign of too rich on gas and not enough air. Not enough gas will cause the mower to bog down when blades are engaged as it isn't powerful enough to run the motor AND turn the blades. Check your carb and see if you need to clean it and replace diaphgram. Sounds a lot like a carb problem.

Posted on Jun 22, 2009

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1 Answer

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