Carburetor rebuild neccessary?


Old 08-31-04, 05:41 PM
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Join Date: Jul 2003
Location: Montevallo, Alabama
Posts: 590
Carburetor rebuild neccessary?

I have a sears model 502.251220 rear engine riding lawnmower with a 10 HP tecumseh engine model #- 143.951010. When it came in it sounded like it was running with the choke I took the air filter off (which was pretty dirty) and it seemed to run O.K. So the next day I replaced the air filter and pre-filter. It ran O.K. for a while, then started blowing black smoke and finally died. I'm going to rebuild the carburetor...just wondering, what else would cause these symptions?
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Old 09-01-04, 12:06 AM
cheese's Avatar
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Join Date: Jul 2001
Location: USA
Posts: 16,817
A carb problem is pretty much all it could be. You may have a bad float, those carbs were notorious for bad floats.

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