This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

colour or readings

  1. B

    Plug colour/readings

    Just wondering if the plug colour in certain parts of the plug determines what part of the jetting it affect like in 2 strokes. mine is fine in centre and porcelain but outer edge is black any ideas?
    • birdwoodburg
    • Thread
    • colour or readings plug
    • Replies: 3
    • Forum: Fuel