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CR125R Jetting

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Any suggestions on jetting my stock 2007 CR125R, it's got a FMF pipe and silencer other than that nothing's been done. Looking for a little better response out of the throttle.

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It's gonna take a little trial and error and is dependent on your region and climate.  FMF has a baseline starting point for their exhaust on their web page.  From there, you will have to fine tune.

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