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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Stock Main Jet
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[QUOTE="Canadian Dave, post: 98240, member: 16102"] No your KDX220 comes stock with a 145 main jet and the KDX200 comes stock with a 160 main jet. They use different sized carbs and therefore different jetting. The KDX220 has a 33mm carb and the KDX200 a 35mm carb. Your 220 has a 42 pilot jet stock. You'll likely only need to pick up a 142 and a 148 main jet (the 148 incase you decide to install an after market pipe down the road). I'd try a 142 main, move the jet needle's clip to the second from the top position (#2) and fine tune the pilot circuit with the air screw. Make sure you do a plug reading at WOT to insure you aren't running lean and take it from there. David [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Stock Main Jet
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