Question about Mtd Products Yard Machines 158CC Tiller

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Tiller won't stay running

My tiller won't stay running. We rebuilt the carb, cleaned the fuel line, new gas, new spark plug. It starts for only a second than dies. Thanks Serena

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  • Anonymous Mar 17, 2014

    have ry60520 tiller the air purge valve is bad. bypassed cleaned carb when i give it throttle it runs out of gas but when i take return line of and feather the fuel coming out of nipple it runs good with throttle wide open as long as i feather the return nipple. does it have to have the purge valve to moderate return fuel flow?

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Hmmmm.....it sounds like restricted fuel flow to me, but explain "rebuilt the carb" so I can get an idea on what you did.

Though it sounds right off like you whooped it good and got the basics.

Right off, go back through the "system", check the fuel flow, check that spark on the plug. Eyeball for any loose wires (E.G., Kill Switch, etc.) that are grounding (you never know!)

Stick to KISS on this one, since it ran before the carb got bad and got rebuilt, it will be one of those things you replaced, rebuilt, or changed. Sometimes, it is the SMALLEST thing......

Posted on May 28, 2009

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1 Answer

If you lent your tiller to your "know it all"


While having your brother buy you a new tiller sounds good, it just might not be practical or posible. So drain the fuel from the tank, fuel lines and the carb., clean the spark plug and replace fuel filter if installed. Put the proper gas in and start it, should be good or clear up pretty quick. Hopefully it did not run with the wrong fuel for too long where the spark arrestor in the muffler would get clogged up.

Good luck.

If really helpful, please rate.

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