One of the dead giveaways that fuel lines need replacing are pools of gas on the garage floor or parking lot. Seeing dripping gas is another. If that hits a hot exhaust pipe, well that just isn't good.
Sometimes aging scooter fuel lines are hard to detect. I changed mine last year for preventive maintenance. Once off the scooter, I found that it was brittle and cracked. The heat from the engine really took its toll on it.
Before changing fuel line, make sure you have all the necessary parts. You'll need the correct length of fuel line, fuel line clips, and a little knowledge of your scooter.
I wrote up a How-to Guide on replacing the fuel line on a Vespa ET4 a few years ago. Yours may be similar.
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