Question about 2000 kawasaki ZX-9 R Ninja

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I want to adjust my vales on my motorcycle

Is it a hard job to adjust the valves on my 2000 kawasaki ninja runs good but has 20,000 miles thats why i would like to do it.what do u think

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Coming from a previous ninja owner/rider. I know adjusting the valves is a project to get the mixture just right. If you say it is running fine, I would leave it alone. It you are really looking for more power, get a jet kit which comes specific for your bike and includes a bunch of different sized jets. But my honest opinion even after reaching 20,000 miles on this bike, if it isn't broken don't change it. The best way to learn is to meet a bike mechanic and become friends with him to learn more. There are usually 3 valves that control different RPM mixtures, a low mixture knob controls RPMs from idle-6k- mid knob from 6-9 and high knob that controls the fuel-to-air mixture at high RPMs from 9-12k+ rpm's. This is just one example and they are all different. Basically you test your RPM range, adjust the knob, and repeat until you find the right feel. Too much or too little gas it will get boggy in that RPM region. Oh and don't turn the high mixture valve thinking it's the low, get a repair manual online to locate the proper knobs and you could do it yourself.

Posted on Jul 25, 2009


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