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Jetting Help 04 Crf450 W/b Carbon Pro Pipe

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I Need Some Help Wiyh My Jetting.i Am Near Sea Level West Tn. And My Bike Has The White Brothers Carbon Pro Pipe. It Seems To Be Running Rich Alot Of Black Build Up Inside The Pipe And On The Plug. I Have Removed The Backfire Screen And Run 93 Octane Amoco Supreme.any Help Would Be Greatly Appriciated.

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Check the fuel screw on the bottom of the carb. Turn it inwards to lean the jetting.

The next step would be to use a leaner needle clip position. If the bike starts to bog, you're too lean.

James

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