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grey wire?

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I just bought a used 01 WR426F. I love it. I am checking out all the mods you can do to this bike. What is this grey wire cut, pulled, removed etc... and what does it do?

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Hi Dan,

The grey wire is a US model thing, it is (apparently) an emissions measure designed to retard the ignition timing at certain RPM's to give a good reading for emissions test,once this is removed or cut, the bikes ignition curve follows the path designed for it and runs a lot better, If you do a "search" on grey or gray wire the board will show you all relevant posts on this and should explain what it's all about :)

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