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High alt. jetting

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We're going to be riding in Wyoming in June. Elevations will range from 6,000 to 12,000ft. Can you guys reccomend a good jetting combo for my brothers stock 2002 XR400.

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with gordon mods & denso irdium plug i used this:

0000 ft > 160 / 60

1600 ft > 158 / 58

3200 ft > 155 / 55

5000 ft > 152 / 55 (54 act., turn pilot in more)

6500 ft > 150 / 52 (53 act., turn pilot out more)

9800 ft > 148 / 50

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