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DR-Z 143 jetting for Big Bore kit

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I just bought a dr-z 143 with a big bore kit and want to know what jets I need to use. What are the most common jets to use?

Here is what it has: A bbr air intake, a bbr 143 big bore kit with brand new rings and gaskets. I was informed it has a stock carb and

and a new fmf pipe on it. It spits and sputters when you go full speed on it in 2 and 3 gear. Any suggestions?

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