Bike= 11' xc250 Six Days
Carb= 38mm ASII
Elevation= 0-2500
93 octane pump gas
Main=172
Pilot=40
Needle=NEDW #3 (optional needle from an 07' Suzuki rm 250)
AS=2 turns out
Slide= stock #7
These Suzuki needles, NEDH,NEDW and NEDJ, rich-lean are the best needles I've used in the bike so far, and I've used almost every needle listed in here and then some. The bike has smooth responsive tractable power(torque) and a bunch more over rev than with the cck or ddk series needles. They just plane work.
I would recommend the NEDW series needle for 250's. The NEDJ needle for 300's, and the NEDH needle for 200's. They also come in an NEC-X which is 1/2 clip position leaner.
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