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.
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.
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.
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.
Check the fuel shut-off valve for leaks, and ensure that the fuel lines fit tightly on the valve. If the fuel shut-off valve is leaking, replace it. In addition, inspect the fuel shut off lines for cracks or tiny holes. If a fuel shut-off line is leaking, replace it.