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Lawnmower has trouble starting, but runs

Re: Craftsman 7.0 self propelled lawnmower

Starts, but takes several pulls. Engine backfires sometimes and will puff black smoke when that happens. Once it starts, runs fine. Any suggestions? Thanks.

p.s. Recently replaced spark plug with E3 Diamondfire brand.

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  • Anonymous Mar 25, 2014

    One side is loose but other will not depress.

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Hello. Did you replace the air filter? If not check it and replace it if it is dirty. Finally get a carbeurator cleaner such as seafoam which you add to the fuel at the rate of one ounce per gallon. This will get the inside of your carbeurator cleaned up. Do these things and you should be back in business.

Posted on Jun 20, 2009

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Posted on Jan 02, 2017

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