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Toro TimeMaster 30" motor shutting off

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jlj
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2023/06/29 15:18:36 (permalink)
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Toro TimeMaster 30" motor shutting off

I have a Toro TimeMaster 30" mower with a B & S model 14D9320220F1 engine.  I have been experiencing occasional issues where the motor shut down.  I can generally restart it immediately or wait a minute or 2.  I would sometimes see gas leaking from around the gas cap.  After fighting this problem for several weeks I changed the coil, OEM part, set gap at .010 and the mower started right up.  I mowed the entire lawn and the mower never shut off.  The temperature that day was relatively cool.  Today the temperature is around 89 and I mowed for the second time since changing the coil.  I had mowed about half the backyard when the mower again started sputtering and shut off.  I noticed gas leaking from the cap.  I reseated the gas cap and started the mower.  I was making the final pass in the backyard when it shut off again.  I gassed up the mower, reset the cap and proceeded to the front lawn.  I mowed the entire from lawn without the mower shutting off or gas leaking.  Can all this be related to a bad gas cap gasket?  Any suggestion will be greatly appreciated.

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    SRTsFZ6
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    Re: Toro TimeMaster 30" motor shutting off 2023/06/30 08:16:35 (permalink)
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    Try running with the machine with the gas cap just slightly loose.  
     
    If the tank is not venting, it'll cause a vacuum and you'll literally run out of gas with a full tank.
    The fuller the tank, the more prevalent the issue will be (less air volume in the tank).
     
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    jlj
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    Re: Toro TimeMaster 30" motor shutting off 2023/06/30 08:21:09 (permalink)
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    If gas is leaking from around the cap wouldn't it indicate that the fuel tank is getting air?
    SRTsFZ6
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    Re: Toro TimeMaster 30" motor shutting off 2023/07/01 08:35:50 (permalink)
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    No, it could mean the tank is pressurized and not venting properly..
     
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    jlj
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    Re: Toro TimeMaster 30" motor shutting off 2023/07/01 08:45:50 (permalink)
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    Thank you, I will try that.
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