Gas cap not venting?

Discussion in '2-Stroke Engines' started by Patch, May 27, 2007.

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  1. Patch

    Patch Guest

    So I searched an found nothing so... My bike will start to run lean after a while. So when I look at the fuel line, it has big air bubbles.

    While the engine is running, I open the gas cap and lift---VUALAH the bubbles are gone.

    So I know my gas cap isn't venting properly--would it be ok if I drilled a tiny hole in the top?

  2. Guest

    Guest Guest

    Yes. Use a small bit and stop as soon as you pierce the top of the cap. I did it to both of my bikes before I ever ran them.