Maintenance & Technical > KX500 Original
Jetting!!! Again and again and again!
Friar-Tuck:
Scroll down and give the this a look-see.
http://www.teamgreennews.ca/pdf/RS03-101e.pdf
Hope this helps
Tuck \o/
BigGreenMachine:
So the short version of all of this is the new 04 KX 500 jetting is the best place to start with and if you have not already done so pick up the N82M needle.
My jetting;
180 main
62 pilot
R1369N in middle clip setting
Whereas I should start with
168 main
58 pilot
N82M needle
I know there is more to jetting then simply installing these and calling it a day but that should put me a lot closer right?
Hillclimb#42:
BigGreen -Yep, Fixed mine. Start there, with the mixture screw out 1 1/2. Keep in mind its stock settings. You may need fatter jets for bikes that are worn, or race fuels. If you're close to stock, even with a pipe and silencer, it should still be very close. Warm it up, ride it, check plug color. Electrode should be brown.
Raredesign - Go off of jetting chart for elevation and temperatures. I think the pilot controls idle and bottom, needle affects how it comes off the bottom to mid-range, and the main controls how it runs when you hammer it. So checking the plug after running under these conditions might give a clue to which is fat or lean.
Friar-Tuck:
I hope the links help. I realize there is lots of reading and most of it reads like Greek to someone taking this on for the first time, however if you take some time it will start to make sense and you'll
have your bike runnin' like a scalded dawg :-D
Hang in there guys,
Tuck \o/
http://www.duncanracing.com/techfaq/Tech_keihin-carburetion-jetting.phtml
http://www.motorcyclecarbs.com/carbs101.pdf
http://justkdx.dirtrider.net/jetneedles.html
http://www.sudco.com/vol33/135-136.pdf
http://www.keihin-us.com/am/
http://www.cyclewerksracing.com/Carb%20Tuuning.htm
martinfan30:
Hey guys, I took my carb out for the first time to check it's jetting.
Elevation 4500ft., riding in 60-80 temps
165 main
58 pilot
#7 slide
N82r needle with clip in second from top position.
105 starter(?) jet
I rode another guys KX5 and it seemed slightly more crisp. My question is, the stock needle seems to be the m needle, right?
What is the difference with needle?
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