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Cub Cadet Snowblower Leaking Gas

The snowblowersmall engine often has a separate model number. Use the small engine model number for a complete list of symptoms and parts. Watch our model # lookup video for help finding the model number.

31BM73TS710/2011

The part(s) or condition(s) listed below for the symptom Snowblower leaking 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 Snowblower leaking gas

Cause 1Carburetor Bowl Gasket

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

Parts
Carburetor Bowl Gasket for your Cub CadetSnowblower
Carburetor Bowl Gasket - Part # 1843823 Mfg Part # 951-11589
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Cause 2Carburetor 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 Cub CadetSnowblower
Carburetor Gasket - Part # 1843806 Mfg Part # 951-11567

Carburetor insulation gasket

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Cause 3Carburetor 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 Cub CadetSnowblower
Carburetor Gasket - Part # 1843808 Mfg Part # 951-11569A
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Cause 4Carburetor 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 Cub CadetSnowblower
Carburetor Gasket - Part # 1843947 Mfg Part # 951-11897

Carburetor gasket (Choke Side)

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Cause 5Carburetor

The carburetor might be cracked, or the carburetor float might be stuck open. Over time, the carburetor can 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 cracked, you will most likely have to replace the carburetor. If the carburetor is not cracked or damaged, inspect the carburetor float to see if it is stuck open. If the float is stuck open, remove the carburetor and clean it thoroughly. If cleaning the carburetor is not effective, rebuild or replace the carburetor.

Parts
Carburetor for your Cub CadetSnowblower
Carburetor - Part # 2397779 Mfg Part # 951-14027A

Replacement carburetor assembly

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Cause 6Primer Bulb

The primer bulb may be leaking. Over time, the rubber of the primer bulb can become brittle and cracked, causing the bulb to leak gas. If the primer bulb is leaking, replace it. Do not attempt to patch or repair the primer bulb.

Parts
Primer Bulb for your Cub CadetSnowblower
Primer Bulb - Part # 1796829 Mfg Part # 951-10639A

Replacement primer bulb assembly

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Cause 7Primer Bulb

The primer bulb may be leaking. Over time, the rubber of the primer bulb can become brittle and cracked, causing the bulb to leak gas. If the primer bulb is leaking, replace it. Do not attempt to patch or repair the primer bulb.

Parts
Primer Bulb for your Cub CadetSnowblower
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Cause 8Fuel Line

If any of the fuel lines are dry or cracked, replace them. Don't try to cut off a piece of the fuel line and then reattach it.

Parts
Fuel Line for your Cub CadetSnowblower
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