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Engine stops when hot.

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oldman350
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2018/09/30 11:54:54 (permalink)
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Engine stops when hot.

I have a 4 1/2 hp B&S on a push mower that stops when hot. I have replaced the carburetor & fuel tank, thinking it was fuel starved, due to a rusty tank. Now it runs great, smooth then stops! I reprime the carb, one pull on the starter and it's running again. Then after five minutes it stalls again. It is a 09L602-1623-F1 model. Any ideas anyone??

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    Wilber
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    Re: Engine stops when hot. 2018/09/30 18:27:22 (permalink)
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    Vapor lock. Try running it with the fuel cap loose.
    AVB
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    Re: Engine stops when hot. 2018/09/30 19:05:12 (permalink)
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    To me it sounds more like thermal shut down of the ignition coil or spark plug. Also need to pull the engine shroud and check for mouse bed.
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