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Old 07-29-2008, 09:56 PM
AZRickD AZRickD is offline
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Join Date: Feb 2007
Posts: 1,838
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Bike year & model = 2005 DE250 (11oz FWWeight)

Stock reeds. LTR needle with clip on position 2. LTR PV cover. Stock slide.

Winter in Phoenix:

Temperature (degF) = 40 - 80
Elevation (feet) = 1100 – 2500
Main jet = 178
Pilot jet = 45
Needle & notch = LTR - 2
Air screw setting = 2 1/2
Throttle valve/slide = stock


Summer in Phoenix:

Temperature (degF) = 80 - 110
Elevation (feet) = 1100 – 2500
Main jet = 172
Pilot jet = 42
Air screw setting = 1 1/2


Summer in Flagstaff:

Temperature (degF) = 75 - 85
Elevation (feet) = 7,000 – 9500
Main jet = 165 (I gave the 168 a try -- almost but not quite lean enough -- a little burble on top. 165 did the trick and was particularly crisp if I dropped the needle to the first clip).
Pilot jet = 40
Air screw setting = 2 1/2

Last edited by AZRickD; 10-04-2009 at 08:50 PM.
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