YEAR: 2007 ( PreGen 250F EX250F )
INTAKE MODIFICATIONS: Airbox removal and K&N R-0990
EXHAUST MODIFICATIONS: OEM Exhaust
JET KIT OR STOCK? Spare Jets
BRAND OF JET KIT? FACTORYPRO FACTORY PRO
MAIN JET: 108 Factory Pro / Keihin (I'm told sizing is identical)
NEEDLE AND CLIP POSITION: Stock needles with 5 Factory Pro washers
MIXTURE SCREW SETTINGS: 3.75
ELEVATION: 300ft to 500 ft
MISCELLANEOUS INFORMATION ABOUT YOUR BIKE’S JETTING SETUP: No 110 FactoryPro/Keihin available to try. Bike requires little choke in Southern California 75 - 90 degree Fahrenheit weather. Bike would not start with 112 jet.
Pilot left at size 38. Size 40 pilot was too rich-- bike would idle at 0 turns on mixture screw with 40s.
Mixture set via highest idle + 1/8 richer method
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Looking to take some motorcycle classes this Summer?
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