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Lawn mower will not start. I changed spark plug, gas is in the mower and oil, mower still does not run

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  • sunneyskies May 11, 2010

    Do you have spark?

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If your mower will start when you prime it, and then it dies right away, you have a carberator pluged. If after primeing the mower and it will not even start for a few seconds, you have lost spark. If you have no spark, this can be cause by two things. First, the magnito could have gone back, but this dosen't happen to often, but it can happen. First, check to see that the cable from the brake handle has not stretched. This controls engine brake and its also the kill switch, which kills the spark. Get acess to your engine brake, and you will find a wire connected to a tab. Remove this wire and try to start the mower. If it starts, replace the control cable. If it dosen't start, hook the wire back up and replace the magnito. I hope this is of some help

Posted on May 09, 2010

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Posted on Jan 02, 2017

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SOURCE: Poulan 6.75 Lawn mower will not start

trouble shooting tips: oil is too full
fuel jet and float are plugged
spark plug lead wire may be damaged inside and needs to be replaced.

Posted on May 02, 2009

  • 1 Answer

SOURCE: Toro lawn mower engine starts and then stops after 2 to 3 seconds

i had this problem and the nut was plugged. After i cleaned the nut, it ran perfect.

Thank you very much!

Posted on Aug 23, 2009

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SOURCE: my lawn mower starts, but won't stay running.

After you check airflow (i.e. cleaning up the air filter), check fuel flow.

I'm assuming the gas is clean and fresh.

Is the gas flowing from the tank?
Is the gas getting into the carb?

If yes, then the next step is to remove the carb.
Check the diaphram between the carb and the tank, this acts as your fuel pump. Is this diaphram in good condition? If not replace it.

While the carb is removed, clean all the little ports (jets) into the carb with WD-40 or carb spray-on carb/choke cleaner (automotive section of your local auto store). Blow it dry with compressed air (canned or from a air compressor). Replace any gasket so the carb doesn't have seepage when reinstalled.

It may sound a bit daunting, but its an easy job and may stores carry the necessary parts. Try WalMart, or auto stores, if they don't then a good hardware store should. Or, a lawn mower shop should have it.

Good luck, I'm rebuilding doing the same thing to one of my mowers this week. Piece of cake.

Posted on Sep 26, 2009

  • 1 Answer

SOURCE: Our Toro Personal pacer Model 20031 lawn mower will not start;

i turn the key and it grinds

Posted on Dec 06, 2009

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I have a John Deere JS30 self propelled lawn mower I had issues with it running for 15 minutes and then it stops running. Was low on oil. Added oil over the full line now it runs for 3 min and dies


Wayne, correct your oil level to full line, change your spark plug and try mower. If still acting up after a couple minutes, the Gas cap vent may be plugged, remove or loosen cap to see if mower will run longer and better. If no improvement, the carburetor is dirty and needs cleaned or rebuilt.
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If you can turn blade by hand first removing spark plug you then can try squirting 30w oil into plug hole and turn blade by hand. replace plug and try to start. Depending on whether you gouged the cylinder it may start.

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