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01 YZ426 - E2 exhaust (Jetting)?

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I have an 01 YZ426 which I purchased a White Bros. E2 quite exhaust for. I now get some sputtering on the low end when I get on the gas. Everything is stock on the bike except the new pipe. Any jetting reccomendations?

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I have an 01 YZ426 which I purchased a White Bros. E2 quite exhaust for. I now get some sputtering on the low end when I get on the gas. Everything is stock on the bike except the new pipe. Any jetting reccomendations?

Clean the carb to start and make sure your air filter is clean and change plug.

My question is what do you describe as sputtering, is it a bog / hesitation, back fire or ?? Answering this may help us define the issue

I have the E2 on my 2000 and had no need to change anything.

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John's right that we could use more description. Sputter is usually a rich symptom. Try turning the fuel screw inwards or a step higher (leaner) on the needle clip position and compare.

James

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