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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
2004 CR250R - Needs Low End for Offroad
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[QUOTE="mx547, post: 1109118, member: 20697"] i have an exhaust flange on mine but i also put on an fmf shorty at the same time. it helped a little but since i put them on together, i can't comment on their individual merits. i went with the cometic high compression head gasket too but couldn't tell any difference (i'm running pump 91). i also went up two teeth on the rear which makes a noticeable difference. as far as jetting goes, the best thing i did was to ditch the crappy mikuni and put on a keihin. [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
2004 CR250R - Needs Low End for Offroad
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