Is my logic on the needles correct? The closer to the top you put the clip the deeper the needle sits which will restrict and cause a leaner mixture?
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Junior Member
Is my logic on the needles correct? The closer to the top you put the clip the deeper the needle sits which will restrict and cause a leaner mixture?
The only difference between genius and stupidity is that genius has its limits.
Senior Member
Yes, that is correct!
07 Polaris Outlaw 525
HMF * AC Blackline * K&N * EHS * ProTaper * Oury * PRM * Pure Polaris * Kenda * Skat Trak * Moore Power * JD Jetting * KTM Hard Parts * Pingel * Maxxis
Senior Member
Well the temperature has been increasing and I have rejetted for the warmer temperatures. Several people have now had there 525's dyno tuned and they are all coming in prettly close to a 165 main and the red needle on the 4th clip. So I tried that at my last race and have to say I was pretty impressed.
Exhaust- Full CT Sonic
Airbox- No lid, ProDesign K&N
Elevation- 800'
Main Jet- 165
Airscrew-2 turns out
JD Jet kit with the big o-ring and red needle 4th clip.
Pilot, slow jet stock. Stock plugged leak jet.
AP timing .100"
2007 Outlaw 525 (#315Q) AC Racing Blackline ProPeg nerfs, Wilson Racing suspension, Precision steering stabilizer, Flexx Bars 15*, Rath Racing anti vib mounts, Rath Racing MX grab bar w/supports, Oury, Pit Posse Outlaw shifter, Vapor computer, JD Jet kit, big O-ring, YFZ throttle mod, Pro design filter, CT Racing full exhaust, RAZR 2, for sand-20x10x10 Edge on Douglas .160.
2007 Predator 500 LE
350 Raptor, 2008 250 Raptor, 2006 Jetmoto 150, 50 Raptor
2007 Outlaw 90(#384M) 2008 Class A 14 and under state champion
2006 Predator 90 (#705M) 10 and under 2nd place in state
Member
When you guys say like 4th clip is that from the top of needle or bottom. I am new to this jetting thing. And also what effect does this have. throttle response??? and also to richen/lean out your quad with the air fuel mixture screw what way do you go. Thanks
08 Outlaw 525s*Pure Polaris Nerfs*JD Jetting*CT Pipe*Rath front bumper*
07 Sportsman 500 EFI (the girlfriends)
Senior Member
When they say "4th clip" it is counting down from the top (blunt end of the needle to the sharp end). What this does is when the throttle is under 1/4 the clip holds the needle up out of the main jet resulting in a richer setting.
2007 Outlaw 525 (#315Q) AC Racing Blackline ProPeg nerfs, Wilson Racing suspension, Precision steering stabilizer, Flexx Bars 15*, Rath Racing anti vib mounts, Rath Racing MX grab bar w/supports, Oury, Pit Posse Outlaw shifter, Vapor computer, JD Jet kit, big O-ring, YFZ throttle mod, Pro design filter, CT Racing full exhaust, RAZR 2, for sand-20x10x10 Edge on Douglas .160.
2007 Predator 500 LE
350 Raptor, 2008 250 Raptor, 2006 Jetmoto 150, 50 Raptor
2007 Outlaw 90(#384M) 2008 Class A 14 and under state champion
2006 Predator 90 (#705M) 10 and under 2nd place in state
Registered User
I need some help! How do I adjust the Accelerator pump. I know what it is now and what it does. I think that i want to adjust it down to .110. How do i do it? I also have the big o-ring on too!
I am going to change my jetting tonight to 160 main red needle 4th clip at 3200-4000 ft.
We will see....please help me with the AP!
Senior Member
What makes you feel that you should change the AP timing?
Outlaw 525
Brute Force 650
Banshee
lt250r (parting out)
Senior Member
http://www.pbase.com/jdjetting1/image/50507859Originally posted by sheriff525
I need some help! How do I adjust the Accelerator pump. I know what it is now and what it does. I think that i want to adjust it down to .110. How do i do it? I also have the big o-ring on too!
I am going to change my jetting tonight to 160 main red needle 4th clip at 3200-4000 ft.
We will see....please help me with the AP!
SFC RET
06 Outlaw
07 540 Outlaw
00 DS730
Registered User
exhaust- FMF Factory 4.1 slip on
Airbox- stock with 4 1'' holes in lid
Elevation- 1100' about
Main Jet- 138 dyna jets
Pilot- Stock (45?)
Airscrew- 2 turns out
needle eclip is on second one down from top. thing runs perfect but going to try a 142 dyna jet main seemed to get more power from it...
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