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Updated.
YEAR: 2009 ninja 250r
INTAKE MODIFICATIONS:no Airbox; K&N Air Filter 0990; Crank case breather, Kleen delete.
EXHAUST MODIFICATIONS: Area P 18" Quiet Core
JET KIT OR STOCK? Jet Kit
BRAND OF JET KIT? Factory Pro
MAIN JET: 110 - down from 112
NEEDLE AND CLIP POSITION: Middle notch
MIXTURE SCREW SETTINGS: 2.5 turns out - in from 2.75 out
ELEVATION: 663 Ft above Sea Level
Dropped the main jet from 112 to 110 and adjusted screws out. Honestly the bike ran fine and plugs were not terrible but bike was rich and needed to choke to start, dropped the main and adjusted the screws, not perfect but better.
Put about 5000 miles on the bike with 112s, avg mileage was 55 mpg with a 15T front, will report back.
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