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Lawn Mower Carburetor Not Getting Gas

August 14, 2017

I was mowing and it just died. It was like it ran out of gas. I looked and I had a third of a tank. From that point on it would only run if I sprayed gas in the carb. When I do it right it runs at an idle speed only. It is not getting gas to the jets in the throat of the carb.

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I replaced the carb with one I know works, but the same thing happens. So far at least 3 experts including Briggs & Stratton techs are baffled. It is a YT3000 Sears with a 21 horsepower engine and 46 inch cut. Thanks.

Answers


Diamond Post Medal for All Time! 1,246 Posts
August 14, 20170 found this helpful

Perhaps you need a new fuel pump.

 

Gold Post Medal for All Time! 677 Posts
August 14, 20170 found this helpful

Check all the fuel lines to the carburetor. If those are good, then check the fuel pump.

 
August 14, 20170 found this helpful

All that has been done all my info says ethanol gas causes problems and no fuel is coming out of the jet other then that its all flowing great also even when I spray gas I can't get past a fast idle.

 

Bronze Post Medal for All Time! 105 Posts
August 14, 20170 found this helpful

I would suggest starting off by downloading the YT 3000 operation manual. Here they have a help section and a carburetor design. It seems you are having an issue with the ethanol gas. I would start by taking my carburetor apart and giving it a good cleaning. You could have a stuck valve inside the carburetor that isn't allowing the gas to flow freely. You might need to replace your fuel jets on the carburetor. Here is the manual you can download online:

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www.manualslib.com/.../Craftsman-Yt-3000-1793153.html

 
August 15, 20170 found this helpful

Jets are all clear. I have replaced the carberator coil gas and spark plug. It will start and run smooth at idle speed as long as I spray gas in the throat of the carb.

 

Gold Feedback Medal for All Time! 949 Feedbacks
August 16, 20170 found this helpful

It seems you have tried everything the experts instructed you to do but nothing worked - have you talked with the Sears Service Center about this problem? I know they have always been helpful with my problems and usually have suggestions to try (given over the telephone) but its for sure they should know more about your mower even if others have failed.

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At this point I would suggest giving them a call.

 

Bronze Feedback Medal for All Time! 116 Feedbacks
August 18, 20170 found this helpful

Did you also replace the fuel lines and the filter? If not, replace those fiirst before thinking about the fuel pump.

 
June 11, 20190 found this helpful

Some gas lines after exposure to ethanol will pinch under even the slightest vacuum. Replace the fuel line.

 
August 8, 20190 found this helpful

Check your wires , that plug in to bottom of carb. That allows gas to go in it might need pushed up to plug in properly . Try that and hopefully that fix your problem .

 
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Archives

ThriftyFun is one of the longest running frugal living communities on the Internet. These are archives of older discussions.

July 16, 2009

I can't get my lawnmower started. I have changed the fuel, changed the spark plug, changed the air filter, changed the air filter gasket, and changed the oil. When I dump lots of fuel in the carb it will run for about 2 seconds, then it dies. Any suggestions?

 
Read More...

June 17, 2008

I have a 4 hp Briggs and Stratton push mower (Murry). the carburetor is not getting any gas, even when the tank is full. Do I need to get another or is there some other things I can try first?

 
Read More...

October 4, 2007

I have a Briggs and Stratton engine on my push mower. The primer will not move any gasoline to the carburetor. Once I took the carburetor apart and it worked for a short while.

 
Read More...
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