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Stock it is jetted lean, but here are the stock settings:

pilot: 40

main: 168

needle position: 4

needle: OBETP

air screw: 1 turn out

Here is the jetting that most run on the 250 XCF:

pilot: 42

main: 170

needle position: 5

needle: OBETP

air screw: .5-1 turn out

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15y ago

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