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Installe JD kit and still having problems on 250x

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I have an 05 crf250x and live in Missouri. I put the red needle in the 5th position and put a 165 main jet in. I have done full airbox mod and have removed the airfiliter screen. With the air screw out 1 1/2 turns it still has a bog off bottom. I bought a 45 pilot. Is that a good idea? Any ideas?

JIM

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Jim,

The adjustment screw is a fuel screw. Turning it out will richen the jetting.

Try the fuel screw at 2 1/2 turns out and see if the change helps. The next larger pilot jet is a #42, which I would try before using the #45 pilot jet.

Thanks,

James

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