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    jlaurie's Avatar
    jlaurie Posts: 3, Reputation: 1
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    #1

    Apr 26, 2009, 11:36 AM
    Small engine cranks, doesn't run
    I have a rider mower that uses a 17.5 hp Briggs and Stratton engine. The engine cranks but does not run. I have replaced the fuel lines (which were cracked), the fuel filter, the spark plugs, the oil, battery,and air filter. I have gas getting to the carburetor but after that - nothing. I have poured gas into the carburetor and it will run for a short time then die. The engine model is 42A707, the engine type is 2238E1. I would be very grateful for any help anyone can supply.
    21boat's Avatar
    21boat Posts: 2,441, Reputation: 212
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    #2

    Apr 26, 2009, 12:11 PM

    I think you may have answered your question. If it runs when you poor gas then the crab is not getting fuel. So either a stuck float or a bad fuel pump.

    Dumping the fuel in replaces the fuel pump.SO the plug and ignition coil is good and compression is good spark is good etc.

    I would start by cleaning the carb out with carb cleaner and go from there. May need a re build kit. Re check for a cracked fuel line or a pinched line and clamps on the fuel line tight.
    jlaurie's Avatar
    jlaurie Posts: 3, Reputation: 1
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    #3

    Apr 26, 2009, 12:31 PM
    Thanks! I will try that. I appreciate your quick response. I can't see how to rate the answer, but will come back later and try again.
    21boat's Avatar
    21boat Posts: 2,441, Reputation: 212
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    #4

    Apr 26, 2009, 01:04 PM

    You just mouse over the orange 'rate this answer" and click on that. It then has an agree or a disagree and room for comment.

    I will be waiting to hear to see how you make out Good Luck...
    jlaurie's Avatar
    jlaurie Posts: 3, Reputation: 1
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    #5

    Apr 27, 2009, 06:13 AM
    The fuel lnes check out, I liberally applied carb cleaner on the linkage- no change. Would a crack on the membrane be the culprit? I removed the 4 hole face plate and glanced at it but really didn't inspect it. I am looking up a rebuild kit now. On a different note, the orange "rate this answer" didn't appear, I don't know why. It only appears on my posts and not your answers. Probably the newbie factor - sorry! Again thank you for your quick reply, it has been very helpful.
    21boat's Avatar
    21boat Posts: 2,441, Reputation: 212
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    #6

    Apr 27, 2009, 10:12 AM
    Quote Originally Posted by ;
    Would a crack on the membrane be the culprit?
    Pretty much any crack on a membrane is a bad one. Especially if it's the fuel diaphragm fuel pump. Where is that membrane on the carb?


    "rate " not appearing is odd maybe you are in a different screen then the rest here. Just for kicks and here is the web page I'm on and see if you see anything below our answers.
    https://www.askmehelpdesk.com/tools-...un-346280.html
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