Silly question about jetting

cbowman78 · December 4th, 2010, 10:43 AM

I am in the amidst of doing my Factory Pro Stage 3 jet kit install. I wanted to follow some of the fellow ninjettes database as a starting ground. When the needle clip position is mentioned as 4, is that the second from the top of the needle or fourth from the top?

I believe its the fourth from the top, but just want to verify.

Also, all my main jets were engraved with "FACTORY" indicating they are Factory Pro Jets except one. One of my 110's did not have that, and was a different colour brass from the rest. Should I worry about this jet not being an authentic Factory Pro jet or just install it?

JMcDonald · December 4th, 2010, 11:32 AM

I believe the FP tuning guide says to count from the top. Does the jet still say 110 on it? If so, I wouldnt worry too much about it but you might call and ask if you are concerned.
Posted via Mobile Device

kkim · December 4th, 2010, 11:41 AM

clip positions are counted from the blunt end of the needles. The first, closest to the blunt end, is #1.

cbowman78 · December 4th, 2010, 02:02 PM

Thanks guys! Install is done!!!

Now I just have to wait for spring to fine tune.

JMcDonald · December 4th, 2010, 03:39 PM

Ah yes I should have clarified. The "top" would be in reference to how the needle will sit in the carb when all mounted.

December 4th, 2010, 03:39 PM	#5
JMcDonald ninjette.org sage Name: J Location: Oklahoma Join Date: Sep 2010 Motorcycle(s): 2008 250R Posts: 771	Ah yes I should have clarified. The "top" would be in reference to how the needle will sit in the carb when all mounted. __________________________________________________ Factory Pro Jet Kit, K&N R-0990 Pod Filter, Sportisi VR Black Exhaust, BRT TIS Ignition, White Paint, and 16/41 Sprockets. Soon: Maybe a 37T Rear Sprocket if I get things running like I'd hoped.

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December 4th, 2010, 10:43 AM	#1
cbowman78 ninjette.org member Name: Clint Location: Niagara Region, Ontario Join Date: Aug 2010 Motorcycle(s): 2009 Ninja 250r Posts: 61	Silly question about jetting I am in the amidst of doing my Factory Pro Stage 3 jet kit install. I wanted to follow some of the fellow ninjettes database as a starting ground. When the needle clip position is mentioned as 4, is that the second from the top of the needle or fourth from the top? I believe its the fourth from the top, but just want to verify. Also, all my main jets were engraved with "FACTORY" indicating they are Factory Pro Jets except one. One of my 110's did not have that, and was a different colour brass from the rest. Should I worry about this jet not being an authentic Factory Pro jet or just install it?

December 4th, 2010, 11:32 AM	#2
JMcDonald ninjette.org sage Name: J Location: Oklahoma Join Date: Sep 2010 Motorcycle(s): 2008 250R Posts: 771	I believe the FP tuning guide says to count from the top. Does the jet still say 110 on it? If so, I wouldnt worry too much about it but you might call and ask if you are concerned. Posted via Mobile Device

December 4th, 2010, 11:41 AM	#3
kkim Join Date: Nov 2008 Posts: Too much.	clip positions are counted from the blunt end of the needles. The first, closest to the blunt end, is #1.

December 4th, 2010, 02:02 PM	#4
cbowman78 ninjette.org member Name: Clint Location: Niagara Region, Ontario Join Date: Aug 2010 Motorcycle(s): 2009 Ninja 250r Posts: 61	Thanks guys! Install is done!!! Now I just have to wait for spring to fine tune.