Fuel line cracked or brittle on outdoor equipment

Symptoms

• Visible cracks or stiffness in the fuel line
• Fuel odor near the tank or carburetor
• Hard starting or stalling from air getting into the line
• Fuel dripping near the line

Likely causes

• CommonAge and ethanol fuel exposureModern ethanol-blended gas degrades rubber lines faster than older fuel formulas.
• PossibleUV exposure and heatEquipment stored in sun or heat accelerates rubber breakdown.
• PossiblePhysical damage from handling or storagePinching or rubbing against other parts can crack the line over time.

What to do

1. Drain the fuel tank before replacing the line to avoid spills.
2. Note the routing and length of the old line before removing it, or take a photo for reference.
3. Purchase fuel-rated replacement line of the same inner diameter.
4. Cut the new line to length and attach it at the tank and carburetor with the original clamps or clips.
5. Refill with fresh fuel and check for leaks at both connection points before running the engine.
6. Run the engine briefly and recheck connections for seepage.
7. If leaks continue at a fitting rather than the line itself, the fitting or grommet may need replacement.

Tools and parts

• Utility knife or line cutters
• Replacement fuel line

When to call a pro

If the fuel tank fitting itself is damaged, a small-engine shop can replace it along with the line.

Safety