Question about Mtd 22" Yard Machine Push Mower

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Mower won't keep idle, up and down - Mtd 22" Yard Machine Push Mower

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Sounds like you will need to clean your carburetor.
Be sure to use compressed air to blow out all the fuel and air passages.
Be careful when blowing out the passages because there are sometimes small rubber type seats in the bottom of some of the passages.
Sometimes you can get by with priming the carburetor a few times, and letting it run a few times like that and it will flush the gunk out of the jets,but most of the time you will need to rebuild the carburetor.
Keep in mind that the float for the carburetor must be level when you go to reassemble the carburetor.
If the mower/weedeater is over a couple years old, then I also recommend that you buy and install a new carburetor repair kit,because the diaphragm will get hard and that will cause it to be hard to crank.
When you clean your carburetor and remove the jet screws, You will first seat the jet screws and count the number of turns it takes to seat the jets from their original position.
That way when you go to put the jets back in, you know how many turns they were in/out.
Please rate me

Posted on Sep 14, 2010


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Float stuck in open position. When the gas evaporated in it there was a gunk left behind and then It was down and either froze up or there is trash keeping the needle valve from sealing up all the way.
So when you start it gas keeps pouring into the motor. It is suposed to shut off once it gets enough to run on.
Be real careful take the carb off and remove the bowl. And then the float. Take a q-tip and clean the needle valve port ou real good. And clean the rubber tip gently. Then put back together.
When it is upside down the float should be parallel with the carb. That would be the shut off point. You may have to adjust it.

That should do it. When you hook the gas line back up loosen the bowl and let gas in carb til it starts to run out. Then mow.

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clean or replace your air cleaner that will fix it,I hope this helps you?

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