Question about Yard Machines 50 Torque 2in1 22" Push Lawn Mower with High Wheels ()

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After primed, mower starts well, runs for about 2-3 seconds then dies

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I just fixed my mower today after almost giving up on it. It would start, then stop after about 1 or 2 seconds after priming it. So I knew it wasn't getting fuel after starting. I first tried the standard things such as checking gas cap for venting, I removed the cap and tried, but same problem. I checked the fuel line from tank to carb, but it was OK.
So then I removed the carburator and cleaned all over, sticking a pin in the little jets on the bolt holding the bulb. I pounded it all over with carb cleaner even though everything looked very clean, nothing appeared to be dirty and no visible problems.
Then I noticed that the float as I tipped the carb up and down didn't always go down. Then I used WD-40 to blast the hinge / springs around the float. I reassembled the carb, air intake, and fuel tank back on to the mower and tried it. It worked and saved me a few hundred that I was ready to spend on a new mower.
When primed, fuel is forced into the carburator so it started right up, but since the float was sticking in the UP position, it though there was already fuel in the bulb and this didn't allow more fuel from flowing into the carburator from the tank. The mower is about 8 years old, Tucumseh, but this will let it last me a few more years.

Posted on Apr 16, 2011

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Sounds like you will need to clean the carburetor or replace your carburetor internal rubber parts like the diaphgram and O rings.
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 or using starting fluid 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 or follow the instrucitons you get with the carburetor kit.
If the mower/weedeater is over a year 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 need to seat the jet screws.
But before you seat the jet screws count the number of turns it takes to seat the jet screws from their original position.
Be sure to mark the turns down on a piece of paper.
That way when you put the jets back in, you know to seat them first and then turn them back out to their orginal position before you started.
This is a FREE answer,Please rate me

Posted on Oct 03, 2010

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