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justpiddling

Jetting Tips for a 2006 YZ450F with new exhaust please

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Are there any riders using an FMF exhaust system (with powerbomb header) on the east coast? I've never touched my jetting, the exhaust system just arrived so I'm wondering if I should use another set of jets for my starting point. I'm in the VA & NC area if that helps to nail some things down. Any tips?

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I have an 06 with the following; 48 pilot (42 stock) part number4MX19948-06-00,170 main (165stock), with needle #5TA-14916-LR-00 (stock for 07 bike) Ran tons better

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