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  1. #1
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    White Crystals On ECU

    I'm sure you guys have seen it, the white crystals on the back of ecu potting. I see it often on Yamahas, but I'm sure there are others.

    What is it and why is it there? Does it affect anything?


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  2. #2
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    I always figured it was the potting breaking down and letting moisture in. Lot of dissimilar metals in there to cause corrosion and surface salts.

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