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Repair guides and support for riding, or ride-on, mowers, also known as lawn tractors, of all types used in tending large tracts of land.

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Why is my mower dying when I turn the blades on?

I was mowing my neighbor's lawn for her, when all of a sudden my mower died. I was in a small indentation in the ground, but there had been no issues mowing that spot before. I pushed the mower out of that spot, and tried to start it again, with no luck.

I turned off the blades, and tried to start it again, and it worked! However, I still had half a lawn to mow. I turned the blades back on, and the mower died again. Not good.

I turned the blades back off and put the mower in my garage. Of course, my neighbor isn't home, so now I'm stuck with a mower with issues and a half mowed lawn. What went wrong?

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Android 维修工具包

一个新的屏幕或电池就在一个套件之内。

现在开始购物

Android 维修工具包

一个新的屏幕或电池就在一个套件之内。

现在开始购物

2 Answers

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Check to make sure that your blades aren’t clogged up with a bunch of grass, dirt, or other obstruction.

If this is not the case, then it is possible that your fuel system is clogged, which means that the engine might not be able to put out enough power to run the blades.  Therefore, if you clean the fuel system, the problem will be solved.

To see if this is the problem, and to easily fix it if it is, drain your lawn mower’s fuel tank.  Buy some new gas, and add some Seafoam gas treatment to the new gas. Move your gas can around a bit to mix the gas and the Seafoam, then fill your lawn mower’s gas tank with the gas / Seafoam mixture.  Then crank up the lawn mower and let it run a minute, to give the Seafoam time to clean out your fuel system.

If a clogged fuel system was the problem, your problem will now be solved.  I did the above to my riding lawn mower, and it immediately began to run like new.  That was over a year ago, and it still runs like new.

https://seafoamsales.com/small-engines/

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I had a similar issue on my John Deere yard tractor. In my case, the culprit was a loose/corroded blade plug on the seat safety switch.

The PTO circuit usually has a couple safety switches that must be closed before it will engage. As a troubleshooting step you can try to jumper the switch connections, and engage the PTO. If it doesn’t die, you know it’s a bad switch.

Like I said, mine was loose/corroded. Cleaning the plug contacts solved the PTO issue for me.

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Morgan will be eternally grateful.
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