How to Replace a Cracked Fuel Line

Turn off the fuel valve or clamp the fuel line near the tank. Disconnect the spark plug wire.

Place a drain pan underneath to catch any fuel that spills when you disconnect the old line.

Note how the fuel line is routed — take a photo. Note which end connects to the tank and which to the carburetor.

Pull or slide the old fuel line off the fittings. If it's stuck, gently twist while pulling. Cut it off if it won't budge.

Measure the old line and cut your new line to the same length. Use the same inner diameter — bring the old line to the parts store to match it.

Slide the new fuel line onto the fittings. Push it on at least 1/2 inch past the barb or nipple. If the fittings have barbs, push past both barbs.

If using clamps, slide them on before connecting and position them over the barbs after the line is seated.

Open the fuel valve and inspect every connection for leaks. Let it sit for a few minutes — some leaks are slow.

Reconnect the spark plug wire. Start the engine and check for leaks again while running.