Riding Mower Fuel Problems


Old 09-05-02, 10:40 AM
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Poulan Riding Mower Fuel Problems

I have a Poulan riding mower with a briggs and stratton engine. I recently filled it halfway with fuel and tried to run it but it quit and wouldn't start. When I checked the fuel tank, it was empty. I also checked the oil and it smelled like gas.

Please give recommendations on what the problem might be.

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Old 09-05-02, 12:04 PM
J A Boggan
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Whats your model, type and code numbers on the B&S engine.
Old 09-05-02, 01:31 PM
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I don't have that information with me right now. I'll check when I get home.
Old 09-05-02, 07:25 PM
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The model is 311777 and the type is 0134-E1.
Old 09-05-02, 11:02 PM
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Hey briansather, you've got a carb float frozen in the open position. DON'T run this engine until you get a handle on this problem because it will ruin the engine in short order running it with oil thinned with fuel.....Mike
Old 09-05-02, 11:28 PM
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I agree...gas is thinning the oil, and it could ruin the engine if run like this. Most commonly, on newer engines like this, the needle valve is the culprit. It has a rubber tip that develops varnish and deforms over time. Clean the carb, replace the needle, check the float to be sure it operates freely and isn't full of gas, and use a Q-tip soaked with carb cleaner to swab out the fuel inlet hole where the needle goes up into the carb. Then change the oil. Let us know how it goes!

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