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Briggs & Stratton Small Engine Leaks Gas

31L777/0110-E1

The part(s) or condition(s) listed below for the symptom Small engine leaks gas are ordered from most likely to least likely to occur. Check or test each item, starting with the items at the top of the page.

Most Frequent Causes for Small engine leaks gas

Cause 1Carburetor Gasket

The carburetor gasket might be dried out or missing. If the leak is coming from the bottom of the carburetor, try replacing the carburetor gasket.

Parts
Carburetor Gasket for your Briggs & StrattonSmall Engine
Carburetor Gasket - Part # 1644228 Mfg Part # 695410
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Cause 2Float Bowl Gasket

The carburetor float bowl gasket might be dried out or missing. If the leak is coming from the bottom of the carburetor, try replacing the carburetor float bowl gasket.

Parts
Float Bowl Gasket for your Briggs & StrattonSmall Engine
Float Bowl Gasket - Part # 1567850 Mfg Part # 281165S
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Cause 3Float Bowl Gasket

The carburetor float bowl gasket might be dried out or missing. If the leak is coming from the bottom of the carburetor, try replacing the carburetor float bowl gasket.

Parts
Float Bowl Gasket for your Briggs & StrattonSmall Engine
Float Bowl Gasket - Part # 1611172 Mfg Part # 698781
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Cause 4Fuel Line

One or more of the fuel lines may have a leak. Inspect the fuel lines for cracks. If any of the fuel lines are cracked or dry, replace them. Do not attempt to repair a fuel line—if a fuel line is cracked, you must replace it.

Parts
Fuel Line for your Briggs & StrattonSmall Engine
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Cause 5Fuel Line

One or more of the fuel lines may have a leak. Inspect the fuel lines for cracks. If any of the fuel lines are cracked or dry, replace them. Do not attempt to repair a fuel line—if a fuel line is cracked, you must replace it.

Parts
Fuel Line for your Briggs & StrattonSmall Engine
Fuel Line - Part # 1646826 Mfg Part # 791744

Replacement Briggs fuel like kit with clamps. 1/4 Inch inside diameter with 90' bend.

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Cause 6Fuel Line

One or more of the fuel lines may have a leak. Inspect the fuel lines for cracks. If any of the fuel lines are cracked or dry, replace them. Do not attempt to repair a fuel line—if a fuel line is cracked, you must replace it.

Parts
Fuel Line for your Briggs & StrattonSmall Engine
Fuel Line - Part # 1646837 Mfg Part # 791766

Replacement Briggs & Stratton fuel line kit with clamps. 1/4 Inch inside diameter, Cut to length.

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Install Help
Cause 7Fuel Line

One or more of the fuel lines may have a leak. Inspect the fuel lines for cracks. If any of the fuel lines are cracked or dry, replace them. Do not attempt to repair a fuel line—if a fuel line is cracked, you must replace it.

Parts
Fuel Line for your Briggs & StrattonSmall Engine
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Cause 8Carburetor

Over time, the carburetor may develop cracks due to the vibration and heat of the engine. If the carburetor is cracked, it will leak fuel. Inspect the carburetor for cracks or corrosion. If the main body of the carburetor is leaking, you will most likely need to replace the carburetor.

Parts
Carburetor for your Briggs & StrattonSmall Engine
Carburetor - Part # 4449925 Mfg Part # 594593

Briggs & Stratton carburetor. If the carburetor is clogged, the engine won't get enough fuel. As a result, the engine may not start or may run rough. The carburetor can often be cleaned or rebuilt, but may sometimes need to be replaced.

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