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Canadian Daves JustKDX
KDX 250 known for lack of top end ?
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[QUOTE="GhostofSilverider, post: 1410287, member: 121135"] I have a jetting problem because despite opening the airbox, the bike still fouls plugs and I haven't been riding at excessively low rpm . The plug is still black only less wet. I don't get it, removing the lid should be the equivalent of dropping 10 points on the main if I take the numbers I read in an article about this very model. I am refering to a March 1992 issue of Moto Verte , the French dirtbike magazine. I have the same model, according to the then # 1 Kawie dealership involved in racing, the removal of the airbox cover along with derestricting the pipe calls for a change of the mainjet from 152 (stock they say) to 165. I don't know what 's in the carb and will look at it but the previous owner must have put an even bigger mainjet. And even then what I don't understand is that with all that the engine doesn't sputter and works well except for what is for me a rather minor lack of top end power. In my mind a jetting that's too rich leads to an engine with a noticeable poor performance. So my question is : Is there something unrelated to jetting that could foul plugs (i.e. wet combustion chamber) ? [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
KDX 250 known for lack of top end ?
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