I've got a 2008 DE 300 (same as EC, but no lights and smaller flywheel).
The jetting is #178 main. #45 pilot. LTR needle, clip in center position (call Les at LTR). Air screw , 2 - 2 1/2 turns out.
We run Bel-Ray MC-1 @ 50:1 with pump gas. (The Bel-Ray is a little dirty at the exhaust outlet, but does great at keeping the top end and main bearings in good shape).
Our bike starts easily, runs clean and crisp from bottom to top and doesn't foul plugs. It pulls strong throughout and runs away from our KTM 400.
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