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Dirt Bike Brands - Other
2004 crf 250x performance upgrade
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[QUOTE="mideastrider, post: 1366597, member: 70833"] Uncorking it will help a lot. I have an fmf Q4 muffler w/spark arestor on the stock head pipe, top of the breather box opened up. Jet kit in the carb. Hi comp wiseco piston and a stage 1 hot cam. I also have disconnected the pink wire. I can't say if that did anything or not but I can say it hasn't hurt. I don't know what sort of numbers I could say it increased power but if you talk to my son he would say its a 100 percent better. I had a jardine full exhaust to begin with and they are loud and they pull hard on the very top. The insides came apart and thats when I went with the fmf and stock head pipe. He likes the fmf better he says its smoother through the entire rpm range. [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
2004 crf 250x performance upgrade
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