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Non-Running Briggs and Stratton Mower

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Bulldog2018
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2018/05/12 18:35:13 (permalink)
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Non-Running Briggs and Stratton Mower

So, I have a MTD riding mower with a Briggs and Stratton VTWIN. It ran most of the summer last year and quit half way through. I still can’t get the dang thing to turn over. So far I’ve replaced the solenoid, the starter, battery, gas, spark plugs, and most recently the safety switch. It will crank when I do the old screw driver test. I am completely lost as of now. Is there something I’m missing or should try next? Thank you all in advance.

By the way, when I turn the key I get no sound, at all.

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    Mikel1
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    Re: Non-Running Briggs and Stratton Mower 2018/05/12 19:07:48 (permalink)
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    Guessing your shorting starter solenoid so will it start or just crank?
    Bulldog2018
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    Re: Non-Running Briggs and Stratton Mower 2018/05/12 19:25:54 (permalink)
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    When I turn the key I get nothing, no sound at all. When I stick the screwdriver to it, it just cranks.
    Mikel1
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    Re: Non-Running Briggs and Stratton Mower 2018/05/12 19:40:50 (permalink)
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    Is fuse intact?
    Bulldog2018
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    Re: Non-Running Briggs and Stratton Mower 2018/05/12 21:11:55 (permalink)
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    Yes, it’s all tight and snug
    Mikel1
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    Re: Non-Running Briggs and Stratton Mower 2018/05/12 21:18:18 (permalink)
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    So do you have a multimeter?
    Bulldog2018
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    Re: Non-Running Briggs and Stratton Mower 2018/05/12 21:49:43 (permalink)
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    Yes
    Mikel1
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    Re: Non-Running Briggs and Stratton Mower 2018/05/12 23:52:25 (permalink)
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    Good, so do you have 12+ volts going to ignition switch? The model # of your mtd would also be helpful, hopefully to locate a wiring diagram.
    Wilber
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    Re: Non-Running Briggs and Stratton Mower 2018/05/13 07:02:34 (permalink)
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    A mouse chewed one of the wires. It happens. I found a whole nest, twice, in my big snow blower.
    Bulldog2018
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    Re: Non-Running Briggs and Stratton Mower 2018/05/13 07:52:27 (permalink)
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    To be completely honest, I have no idea how to even use the multimeter. I’m not knowledgeable in electrical at all. What settings do I put it on and where do I put each needle? I did find a diagram but like I stated, I am not electrical savvy lol it is a

    422707 1510 01 90101212
    AVB
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    Re: Non-Running Briggs and Stratton Mower 2018/05/13 08:22:00 (permalink)
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    Those numbers are for the engine which indicates it is Briggs vertical opposed engine and not a V-twin. They tell us that you got either a 1990 or '91 mower. What we are needing is the number off the mower's serial number which on MTD is usually on the bottom of the seat or on the rear fender under the seat.
     
    As for how to use a multimeter here is a link for that.
    https://www.ifixit.com/Guide/How+To+Use+A+Multimeter/25632
     
    Since you would testing the present of voltage a 12 vdc test light can work too. Basically one lead is grounded to the frame and other touched to the test point. But we do need to see wiring diagram to see how the safety system is setup. Some are simple and other are rather complicated.
    post edited by AVB - 2018/05/13 08:28:24
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