Need help with jetting a Leo Vince

rc-rick · April 9th, 2014, 03:51 AM

I had an areaP which was damaged from a crash. I replaced it with a Leo Vince Corsa full race exhaust without insert. The jetting was set up with the AreaP with an air box with the snorkel removed.

When I replaced it, it ran pretty good until the weather got cold then I could feel some flat spots. I now have pods and want to get a base line for the first race coming up in a couple weeks. My plan is to get a dyno tune, but don't think that will happen between now and first race weekend.

Can anybody give me some numbers for jetting?

csmith12 · April 9th, 2014, 05:33 AM

@KazMan

https://www.ninjette.org/forums/show...89&postcount=3

iZapp · April 10th, 2014, 10:53 AM

leave the mains as stock and add two tiny copper washers (~0.050") underneath each needle clip. poor mans jet kit, runs like a ding dong!

abhijitz · April 10th, 2014, 11:18 AM

If you are using the newer GP full system, leave the insert in ... the insert is needed for back pressure. [I was the first tester of the newer style GP system and like before ran without the insert & bike ran horrible]

All the AFM guys here ran with snorkel in, with stock airbox. And all of them ran the insert in.

My jetting with stock airbox, snorkel in, BMC air filter was DJ94, 40 pilot, 2Turns out on AF mixture, needle at 3 clips.

However, i know one guy who was running at AFM without the insert. His bike did not have the snorkel [That is against AFM production rules]. His bike did not have the insert in as well and apparently it ran fine.

A AEM-UEGO would be a good investment to play with your jetting on-track.

April 9th, 2014, 03:51 AM	#1
rc-rick ninjette.org member Name: Rick Location: St Peters Join Date: Feb 2013 Motorcycle(s): '09 ZX6 (street), '04 RC51 (street/track), '08 Ninja 250 (race) Posts: 104	Need help with jetting a Leo Vince I had an areaP which was damaged from a crash. I replaced it with a Leo Vince Corsa full race exhaust without insert. The jetting was set up with the AreaP with an air box with the snorkel removed. When I replaced it, it ran pretty good until the weather got cold then I could feel some flat spots. I now have pods and want to get a base line for the first race coming up in a couple weeks. My plan is to get a dyno tune, but don't think that will happen between now and first race weekend. Can anybody give me some numbers for jetting?

April 9th, 2014, 05:33 AM	#2
csmith12 The Corner Whisperer Name: Chris (aka Reactor) Location: Northern KY Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much. MOTY 2015, MOTM - Nov '12, Nov '13	@KazMan https://www.ninjette.org/forums/show...89&postcount=3 __________________________________________________ Goal: Shake A Million Hands \| Look through the corners \| Track Day Prep \| Closest track? \| The Mid-Ohio School

April 10th, 2014, 11:18 AM	#4
abhijitz ninjette.org sage Name: Abhijit Location: San Francisco Join Date: Nov 2011 Motorcycle(s): Many Two Wheels .. Posts: 611	If you are using the newer GP full system, leave the insert in ... the insert is needed for back pressure. [I was the first tester of the newer style GP system and like before ran without the insert & bike ran horrible] All the AFM guys here ran with snorkel in, with stock airbox. And all of them ran the insert in. My jetting with stock airbox, snorkel in, BMC air filter was DJ94, 40 pilot, 2Turns out on AF mixture, needle at 3 clips. However, i know one guy who was running at AFM without the insert. His bike did not have the snorkel [That is against AFM production rules]. His bike did not have the insert in as well and apparently it ran fine. A AEM-UEGO would be a good investment to play with your jetting on-track. __________________________________________________ [ex-AFM #828 \| SMUSA #828 \| Sponsors : MotionPro \| LeoVince \| Insurrection Racing Gloves \| QstarZ Laptimers + OEM Parts @ 30-40% OFF : Harry @ 1-877-437-1631,17 harry@hondaeasttoledo.com

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April 10th, 2014, 10:53 AM	#3
iZapp former ninja 250'er Name: Geo Location: NE Ohio Join Date: Jan 2013 Motorcycle(s): Aprilia 1000R, CRF450, CBR600RR tracktoy, Ninja 250 -- GONE!!!!! Posts: 153	leave the mains as stock and add two tiny copper washers (~0.050") underneath each needle clip. poor mans jet kit, runs like a ding dong!