Unlock the Right Part
for Your Repair
Find the exact part you need
Enter your model number to see parts that fit your machine.
Price Match Guarantee
In-stock parts ship the same day
365-Day Return Policy
Price Match GuaranteeChoose Product
Identify Problem
03
Find Solutions
HomeRepair HelpWalbro RepairWalbro Small engine leaks gas Repair
Walbro Small engine leaks gas
When a Walbro small engine is leaking gas, stop using it until you find the source and replace the damaged part. Gas leaking from the carburetor most often points to a dried-out or missing carburetor gasket, float bowl gasket, or carburetor bowl gasket, especially when fuel is coming from the bottom of the carburetor. A cracked fuel tank is another common cause of an engine fuel leak, followed by cracked or brittle fuel lines. Inspect the primer bulb as well, since its rubber can deteriorate and allow fuel to escape. Stale or ethanol-blended fuel left in the carburetor can accelerate gasket and rubber deterioration and contribute to small engine leaking gas. Do not patch a fuel tank, fuel line, or primer bulb. Replace the leaking component, and check nearby parts for fuel damage before restarting the engine. Enter your Walbro model number to find the exact replacement carburetor gasket, float bowl gasket, carburetor bowl gasket, fuel tank, fuel line, or primer bulb for your specific engine.
01 - Walbro Carburetor 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.
Enter model number to search for the required part specific to your product
Top Solution
02 - Walbro Float 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.
Top Solution
03 - Walbro Carburetor 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.
Top Solution
04 - Walbro Fuel Tank
The fuel tank might be cracked or have a small leak. Inspect the fuel tank for leaks. If there is a leak, replace the fuel tank—do not attempt to repair it.
Top Solution
05 - Walbro Fuel 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.
Top Solution
06 - Walbro Primer 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.
Highly Likely
07 - Walbro Carburetor
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.
Common
Frequently Asked Questions
Why is my Walbro small engine leaking gas from the carburetor?
What should I check if my small engine is leaking gas from the fuel line or tank?
Why is gas leaking from my small engine primer bulb?
Can old gasoline cause a Walbro carburetor to leak gas?
How do I find the correct Walbro small engine fuel leak part?
Shop by Walbro appliance Parts
Shop by Popular Walbro Models
Our Story
Family-owned and operated since 1912, Burke America Parts Group is the longest-running genuine appliance, HVAC, and outdoor power equipment parts solution in North America. At Repair Clinic, we're proud to be an international brand trusted by the pros as well as the DIY community.
About Repair Clinic
© 2026 RepairClinic.com