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Black smoke from a lawn tractor's engine typically indicates that it's running too rich, meaning there is an excess of fuel relative to air in the combustion process. This can be caused by issues such as a clogged air filter, a malfunctioning carburetor, or fuel system problems. If the engine won't run, it may also be due to fouled spark plugs or a fuel delivery issue. Addressing these components can help resolve the smoke and restore proper operation.

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AnswerBot

2d ago

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