How to Fix a Go-Kart Carburetor Leaking Gas

How to Fix a Go-Kart Carburetor Leaking Gas: 5 Common Issues

A leaking carburetor can cause problems for your go-kart, from poor performance to potential safety hazards. In this article, we’ll explore five common issues that can cause a go-kart carburetor to leak gas and provide guidance on how to fix each one. Regular go-kart maintenance can help prevent these issues, but it’s essential to know how to address them when they arise.

Key Takeaways
A leaking go-kart carburetor can lead to dangerous situations and should be fixed immediately.
Common issues causing leaks include stuck float, clogged jet, broken gasket, loose fuel line, and torn gas line.
Proper maintenance and cleaning can prevent many carburetor issues and extend its lifespan.
Repairing the carburetor requires basic tools and some mechanical skills, but can save money on professional repairs.
When in doubt, consult the manufacturer's manual or seek advice from a qualified mechanic.

Related Article: Best Go-Kart Carburetors

1. Stuck Carburetor Float

The carburetor float plays a vital role in regulating the amount of fuel that enters the carburetor. If the float gets stuck, it can prevent the float valve from closing properly, causing fuel to overflow and gas leak. This usually occurs due to dirt or debris obstructing the float valve.

How to fix a stuck carburetor float:

  1. Turn off the fuel supply and remove the carburetor from the engine.
  2. Carefully disassemble the carburetor, paying close attention to the float and float valve.
  3. Clean the float valve and the surrounding area with carburetor cleaner, removing debris.
  4. Inspect the float for damage and replace it if necessary.
  5. Reassemble the carburetor and reinstall it onto the engine.

2. Clogged Carburetor Jet

Carburetor jets control the flow of fuel and air mixture into the engine. Over time, these small openings can become clogged with dirt or debris, leading to an irregular fuel flow. This can sometimes result in a gas leak as fuel pools within the carburetor. A well-maintained carburetor is crucial for optimal go-kart performance.

How to fix a clogged carburetor jet:

  1. Remove the carburetor from the engine and disassemble it.
  2. Locate the jets and carefully clean them using a thin wire or carburetor cleaner. Be cautious not to damage the small openings.
  3. Reassemble the carburetor and reinstall it onto the engine.

3. Broken Carburetor Float Bowl Gasket

The carburetor float bowl gasket creates a seal between the float bowl and the carburetor body, preventing fuel from seeping out. Over time, the gasket can become damaged or worn, leading to fuel leaks. It’s essential to check the gasket during routine go-kart inspections.

How to fix a broken carburetor float bowl gasket:

  1. Remove the carburetor from the engine.
  2. Locate the float bowl gasket and inspect it for damage or wear.
  3. If the gasket is damaged, replace it with a new one.
  4. Reassemble the carburetor and reinstall it onto the engine.

4. Loose Fuel Line Connection

Loose connections between the fuel line and the carburetor can lead to fuel leaks. This issue is relatively easy to spot, but it’s crucial to address it immediately to avoid potential safety hazards. A properly connected fuel line ensures that your go-kart remains fuel-efficient and safe to operate.

How to fix a loose fuel line connection:

  1. Inspect the fuel line connections at the carburetor and the fuel tank.
  2. Tighten any loose connections using a wrench or pliers.
  3. If the fuel line is damaged or cracked, replace it with a new one.
  4. Secure the new fuel line with hose clamps to ensure a tight connection.

5. Torn Gas Line

A torn or damaged gas line can cause fuel leaks and pose a significant safety risk. Regularly inspecting your go-kart’s gas line for damage is critical to maintaining.

How to fix a torn gas line:

  1. Turn off the fuel supply and carefully inspect the gas line for tears, cracks, or damage.
  2. If you find any damage, remove the old gas line and replace it with a new one.
  3. Ensure the new gas line is properly connected to the fuel tank and the carburetor, securing it with hose clamps as needed.


Addressing these common issues can keep your go-kart carburetor in top condition and prevent gas leaks. Regular go-kart inspections and maintenance will help you spot potential problems early and ensure that your go-kart remains safe and enjoyable to drive. Don’t forget to check out our other articles on go-karting topics, such as How to Clean a Go-Kart Carburetor and Go-Kart Carburetor Adjustment Guide, for more helpful tips and advice.

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