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Dirt Bike Discussions By Brand
KTM MX & Off-Road Dirt Bikes
jetting for 99 125EXC
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[QUOTE="BSer, post: 118999, member: 22984"] I have a 99' 125 EXC, live in Wisconsin at about 1000' elevation. My jetting is the stock main jet, the top clip on the stock needle, and a 45 pilot jet, 6.0 slide. I used to use a leaner main jet but switched back to stock after losing a crank bearing. I also tried a 7 mm slide, didn't like it, although it seamed to clean up the bottom in conjunction with the 45 pilot. Seemed a little lean though. My bike runs slightly rich at 1/4 throttle but it doesn't bother me at all, I have never fouled a plug. I use Golden Specto at 40:1-32:1, with 93 octane pump gas. [/QUOTE]
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Dirt Bike Discussions By Brand
KTM MX & Off-Road Dirt Bikes
jetting for 99 125EXC
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