Hello, Forgive me in advance, I have no mechanical knowledge! I have 2 Coleman CT200U Mini Bikes that my kids received from their Grandfather. The problem is that both leak gas from the cap. One much more than the other. I've checked the gasket on each and made sure everything was aligned and it put on tightly. One son tells me his only leaks a little and mostly when he has a fuller tank. The others leaks quite a bit and every time he rides no matter how much gas he has in the tank. Is this a common problem? Is there a replacement cap that will fix this? I would really appreciate any advice.
Thank You!
Thank You!