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Stalling Briggs & Stratton engine

I have a 2006 Yard Machines riding lawn mower model # 13B771G729
SN: 1C306B70480 502cc (17.5 hp Briggs & Strat engine, single cylinder), that out of the blue started to stall. The engine starts, but stalls as though about to quit then picks up revs again.

Initially, the problem seemed to subside if I engaged the blade. After a while though, it started the stalling while even with the blade engaged.

Most recently, I've stopped using it because the engine started to cough and backfire.

I have checked the fuel (clean, & fresh), removed the fuel line at the carb and it flows unobstructed through the inline filter. All electrical connections seem to be tight. Removed the spark plug and it appears to be burning clean.

Any ideas what the problem may be? Where can I get my hands on a shop manual for this particular riding lawn mower?

Any ideas, help or suggestions will be welcome. I'm stomped!


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  • vivomilagro Sep 03, 2008

    babeegirl78: Thanks, I'll tear the carb down, clean and re-set as you said, but It'll be a blindfold job cause I don't have the manual.

    I'll just make sure to take plenty of notes when tearing it down so as to make sure everything is put back in its proper place & sequence.

    I'll let you know how it goes...


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First thing to try is drain all the gas and replace with fresh gas . Then change the spark plug and I will bet that takes care of it.....joedog

Posted on Feb 26, 2009

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Try taking the air filter off ,start the motor and try it. If this works replace air cleaner element

Posted on Oct 05, 2008

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Carbeurator needs torn apart..cleaned and reset.

Posted on Sep 03, 2008

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Posted on Jan 02, 2017

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