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Dirt Bike Discussions By Brand
Kawasaki MX & Off-Road Dirt Bikes
KX250 -06 increasing compression
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[QUOTE="SADude, post: 1079826, member: 54793"] Jetting, sprocket selection and Flywheel weight if you are a trail rider. KDX Crazy, I assume you bought your bike from Russell Campbell Racing?? I spoke to Geoff Wolhuter a couple days ago and he runs the following jetting 160/48 clip in the top location on the needle and runs a 300g flywheel weight. Sprockets 13/48 for Tail riding enduro WFO style. Obviously this is set up for less than 1000ft above sea level and running the 95 octane pump gas that we get here in KZN. If you bike is jetted properly and geared properly I don't feel there would be any need for increasing the compression. Compression on a KX250r 2006 is 10.5 (low speed) – 9.1 (high speed):1 and on a YZ it is 10.6 (low speed) – 8.9 (high speed):1. The YZ probably has the best bottom end off all 2-strokes that is why they get used for trail riding more than other MX bikes, I would say the KX competes favorably. I agree if you want more then a pipe or reeds would be where I would start, before major engine mods. [/QUOTE]
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Dirt Bike Discussions By Brand
Kawasaki MX & Off-Road Dirt Bikes
KX250 -06 increasing compression
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