Question about Mtd Yard - Man 160cc, 21" Self - Propelled Lawn Mower

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When i prime the lawn mower it only runs for a few seconds

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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SOURCE: Brand new lawn mower will start but stall after

You have a fuel restriction. Usually you have to disassemble the carb and clean it, but sometimes you can remove the air filter, rev up the motor, somehow, and place hand over intake. this sometimes will **** the restriction through.

Posted on Nov 22, 2010

Testimonial: "ITS NOT FIXED COMPLETE, BUT IT WILL RUN NOW. IT RUNS ROUGH. THANKS FOR YOUR HELP."

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SOURCE: mowers is not getting gas

Check your float ... it might be sticking in the upward position when the fuel well fully fills? This would cause the mower to run on the fuel that gets inside the line when you prime it, but since the float stuck in the upward position would close the intake line from the gas tank, your mower would die after the priming fuel is spent.
[The float is located inside the metal bowl beneath the carburator usually, and can be opened by removing a single bolt/screw in the center of the bottom of the bowl. Be careful to pay attention to how the valve-pin attached to the float is attached; usually it's just hooked on very loosely. Thouroughly clean the float, pin & inside of the bowl, then reassemble after making sure the float moves freely.] If the problem isn't solved by this, you might have an obstruction (like a leaf-cutter wasp nest) in your fuel line between the gas tank & carburator? Check the float first.

Posted on Apr 18, 2009

heres2maine
  • 84 Answers

SOURCE: lawn mower does not run.

Needs a new diaphragm. Its between the carb. and gas tank. It collapsed and doesn't allow enough gas to carb. to keep motor running.

Posted on Apr 15, 2010

  • 198 Answers

SOURCE: my lawn mower starts easily, then shuts down. each

disassemble the carb and make sure the float valve is not sticking

Posted on May 10, 2010

rycgl
  • 1545 Answers

SOURCE: My yard machines push lawn

Try removing the brass bolt that holds the float bowl on the carburetor and cleaning ALL the tiny holes in it. Use no metal objects on it as it is also the main jet of the carburetor. Carb/Choke Cleaner aerosol spray works well here. Pay close attention to real small holes near the top in the unthreaded portion of the bolt. Remember, no scraping with metal and no metal wires thru it.

Posted on May 10, 2011

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probably a small amount of water in the carb...which if left for a period of time will clog up one of the small orifices in the carb and prevent fuel flow. will start when primed but quit in a few seconds.
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It starts because of excess fuel from priming. It usually then gets it fuel from main jet in carb.

You need to find the main jet and run a fine piece of sturdy wire through it. That will restore fuel flow so your mower can continue running after the priming fuel is gone.

This is a good thing to learn. Main jets tend to clog a lot on mowers these days.

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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

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1 Answer

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