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Tough cold start

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Trmt701
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2020/03/20 14:31:55 (permalink)
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Tough cold start

I have a 6.5 Briggs and stratton Lawn Boy push mower. 124T05-0216-B1. It takes about 12-15 pulls to get going. Each time runs good I think for about 2 seconds. Once it's running it's fine. You can stop it, come back and start up fine. Carbs clean. Fresh oil. Compression test about 55 psi. Did a leak down test up to 40 psi. Stayed around 36-38 psi. Any ideas?

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    AVB
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    Re: Tough cold start 2020/03/20 15:14:48 (permalink)
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    If the ipl I looked up is correct you have the primer system. Most likely it not priming due to a warp cleaner base.
    Trmt701
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    Re: Tough cold start 2020/03/20 17:10:40 (permalink)
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    No, no primer. Automatic choke I believe. Has an air vane and a thermostat regulator by the muffler. Thank you!!
    Trmt701
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    Re: Tough cold start 2020/03/20 17:11:37 (permalink)
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    Integrated in the air vane if that makes sense
    Trmt701
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    Re: Tough cold start 2020/03/20 17:20:39 (permalink)
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    Could the thermostat regulator, from the muffler
    that fits into the air vane be bad. It all looks brand new. It was stored by the guys mother for a Lawncare service.
    AVB
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    Re: Tough cold start 2020/03/20 19:07:17 (permalink)
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    First make the thermostat is working ie opening the choke. Second check and make in the adjustments the following service bulletin.
     
    https://drive.google.com/...pKUJnh7QUJOS182MkZBWEE
     
    Also make the choke spring is in place and not deformed.
     
    post edited by AVB - 2020/03/20 19:08:55
    Trmt701
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    Re: Tough cold start 2020/03/21 13:59:41 (permalink)
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    This really helped out. I did get a new thermostat today and fixed the problem. Thank you Much!!
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