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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Carbs and power
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[QUOTE="spanky250, post: 158264, member: 20897"] Welcome to the site!:cool: The 220 is an evolution of the 200, and was designed for the purpose of enhancing the low-end torque. For this reason, it has a smaller carb, the ignition curve is different, and the porting is tuned for low-end torque. There are many easy mods you can do to both machines that will really wake them up, as they are very corked up from the factory. The 200 responds well to either the torque pipe or the rev pipe. The torque pipe will boost the low-end, but it still won't pull quite as strong down low as the 220. The rev pipe will really wake the 200 up, and it will be stronger everywhere, without losing the friendly nature of the stock power. Either pipe is a huge improvement over the stock pipe. The 220 doesn't respond very well to the torque pipe, that is why FMF only lists the rev pipe for it. With the rev pipe, it will still pull strongly down low, but the mid-to-top will be nearly equal to a piped 200. Definitely get rid of the boat-anchor stock pipes. You can still use the stock silencers if money is an issue (isn't it always an issue?;) ), the gain from an aftermarket silencer is minimal. There are some must-do mods to both machines. The air boxes are very restrictive, and the jetting is very rich from the factory. You can find all the info and specs for both on this site if you do a search. The first thing you should do to either bike is to jet them correctly. The next most important thing, in my opinion, is to fix the horribly unbalanced suspension. The forks are sprung for a 130lb rider, while the shock is sprung for a 170lb rider. Putting stiffer springs in the forks will help to balance the suspension front-to-rear, and will help to keep the font end from riding down in the stiff part of the stroke. Before you put much time on either machine, take the suspension linkage, swingarm pivot, and the steering head apart and grease the bearings, as the factory only puts enough grease in these ares to prevent rusting. You picked great machines that will give you many trouble-free years of enjoyment. A well set up KDX with a good rider onboard can show it's rear fender to many larger, more powerful machines in the tight woods. Have fun!:) [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Carbs and power
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