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Carb A/F Adjustment for Altitude

Old 09-09-2011, 08:38 PM
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Carb A/F Adjustment for Altitude

I just moved from Manassas, Va, altitude is 300 feet ASL, to Boise, ID, which is 2600 feet ASL.
My question is will I need to adjust my A/F mixture leaner to compensate for the altitude difference?
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Old 09-09-2011, 08:47 PM
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What are you running right now? How well does she function? I don't believe that altitude difference requires changing jets with a stock setup... it already runs just a tad lean.
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Old 09-09-2011, 08:59 PM
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FP 1.0 carb kit and 4 degree advance. I ahve not had an opportunity to ride the bike yet to see why she performs.
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Old 09-09-2011, 08:59 PM
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Not really..... you might need to turn in the pilot screws a 1\4 turn or so but that would be about all you would need to do for that amount of change.

So just ride it and if it feels a little flat or vibrates a bit between 3-5K then tweak the pilot screws.....
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