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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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?
Yes, that is correct!
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"
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
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.
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!
What makes you feel that you should change the AP timing?
http://www.pbase.com/jdjetting1/image/50507859Quote:
Originally 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!
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...