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Lazarus · July 24th, 2016, 02:20 PM

YEAR: 2008

INTAKE MODIFICATIONS: Snorkel removed and K&N air filter.

EXHAUST MODIFICATIONS: MMG full stainless steel

JET KIT OR STOCK?: Jet Kit

BRAND OF JET KIT: Sigma 6 Jet Kit

MAIN JET: 102.5

PILOT JET: 40

NEEDLE AND CLIP POSITION: Stock needles shimmed with 2 washers each

MIXTURE SCREW SETTING: 2.5 turns out for both

ELEVATION: 700-1200ft

MISCELLANEOUS INFORMATION ABOUT YOUR BIKES JETTING SETUP: Initially I thought the 102.5 mains still made the bike feel and sound lean. Today after work I installed the 107.5 mains only to find that my entire top end sputtered to the redline. Once I re-installed the 102.5 mains and rode her around enough she went back to normal. The pilot jets were perfect and overall the idle is spot on (1500rpm), there is more power in the mid-range and top end, and throttle response has improved.

Further tuning to possibly include: Kleen Air Delete, shimming needles further, drilling the carb slides, clipping the carbs springs, maybe a wideband 02 if I feel froggy enough.

July 24th, 2016, 02:20 PM	#137
Lazarus ninjette.org member Name: RJ Location: PA Join Date: Dec 2015 Motorcycle(s): 2008 Ninja 250 Posts: 210	YEAR: 2008 INTAKE MODIFICATIONS: Snorkel removed and K&N air filter. EXHAUST MODIFICATIONS: MMG full stainless steel JET KIT OR STOCK?: Jet Kit BRAND OF JET KIT: Sigma 6 Jet Kit MAIN JET: 102.5 PILOT JET: 40 NEEDLE AND CLIP POSITION: Stock needles shimmed with 2 washers each MIXTURE SCREW SETTING: 2.5 turns out for both ELEVATION: 700-1200ft MISCELLANEOUS INFORMATION ABOUT YOUR BIKES JETTING SETUP: Initially I thought the 102.5 mains still made the bike feel and sound lean. Today after work I installed the 107.5 mains only to find that my entire top end sputtered to the redline. Once I re-installed the 102.5 mains and rode her around enough she went back to normal. The pilot jets were perfect and overall the idle is spot on (1500rpm), there is more power in the mid-range and top end, and throttle response has improved. Further tuning to possibly include: Kleen Air Delete, shimming needles further, drilling the carb slides, clipping the carbs springs, maybe a wideband 02 if I feel froggy enough.