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97 rm250 jetting with fmf fatty system?

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hi, what is the best carb setup to go with my fmf system, twin air filter. currently running 172 main, 48 slow, and a NIED needle in the 3rd position, have been on fmf site and they suggest 165 main, 45 slow, and a nozg needle, would you agree? thanks, sean uk

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