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Repair guides and support for gas, electric, and human powered machines used to cut grass, whether push style, or ride-on.

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Kubota Z122e runs and mows then dies.

My mower will start up and run and mow but then about 15mins later it dies almost like it's not getting fuel. When I try to crank back up the mower acts like it has dead battery and i have to jump it in order to start again. I have rebuilt the carb, changed lines, it does NOT run rough at all. Any suggestions? Could a bad battery be causing my problems?

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Hi @draco8690 ,

Have you checked the “state of charge” of the battery using a Voltmeter?

On p.48 of the owner manual it shows that a reading of 11.6V DC indicates that the battery needs to be charged (has 0% charge) and 12.6V DC is fully charged, (100%)

If it is flat maybe it is faulty but also maybe it is not being charged when operating

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Check your fuel tank vent in the cap. If it is not venting correctly, as fuel is used a clogged vent will prevent air from entering the fuel tank and thus form a vacuum and starve you engine out until it sits for a while and air seeps back into the tank thus allowing fuel to get to the engine again.

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I tried leaving the cap off but same problem.

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David Vermillion will be eternally grateful.
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