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Discussion Starter · #1 ·
Mower engine is blowing black soot. No oil or fuel spilled. Oil level ok.

Engine runs ok; tractor speed maybe a little slower than normal.

Any suggestions as to cause? Where do I look first and for what?

Thanks.
 

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Discussion Starter · #3 ·
Found a reference somewhere to engine with excessive smoke which >almost< described the heavy sooting. Suggestion there was to inspect foam precleaner filter as well as the paper filter. Neither looked too bad (nor was the engine smoking a lot) but I replaced them both.


Bingo! No more soot. :)
 

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Found a reference somewhere to engine with excessive smoke which >almost< described the heavy sooting. Suggestion there was to inspect foam precleaner filter as well as the paper filter. Neither looked too bad (nor was the engine smoking a lot) but I replaced them both.

Bingo! No more soot. :)
Good to hear you got it sorted! :)
 
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