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Old 11-10-2019, 01:52 PM
distortion10 distortion10 is offline
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Join Date: Mar 2019
Posts: 4
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Hello all,

Just finished a great single track ride but I still have some jetting work to do. Here is what I ran today. Please let me know what you think?

Bike year & model = 2018 EC250 (stock except for turbine 2 w/ spark screen)
Temperature (degF) =65 to 80
Elevation (feet) = 1300 to 1500 feet
Main jet =175
Pilot jet =42
Needle & notch =NEDW 3rd from top
Air screw setting =1.5
Throttle valve/slide =stock

Results: Everything felt great at 65 degrees. Had a momentary off idle bog as the day get warmer but it was only noticeable when at idle then whacking the throttle. Never noticed while under load. Tried everything from 3 out to 1/2 in on the air screw but it nothing eliminated the bog. Seemed to have better throttle response at 1.5 to 1 in.

Any recommendation for where I should start? I was thinking about dropping the clip one slot first as I don't have a larger pilot at the moment. Thank you in advance for any advise.
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