jetting for 400ex
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I recently put a K&N filter on my 400ex (everything else is stock), and I am having a real hard time getting it started. I talked to a mechanic, who mentioned it's probably running too lean now. I asked him if I need to re-jet, and he said to first adjust the gas/air screw on the carb. Will this be enough, or do I need to bump up the jets?
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