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Calif. model 04 EXC 400 jetting??

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If anyone has the Calif. model 2004 EXC 400, what have you done to correct the lean from the factory jetting?

What works good with stock exhaust?

Thanks

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Some try to improve the jetting with the pilot & main jets, the real problem is thru the mid range which is controled by the needle. The Kehein needles are not very well profiled to fit the needs of the engine. JDjetting.com has a kit for that bike that fixes it!

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