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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
new bike jetting
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[QUOTE="rairden, post: 674620, member: 42933"] I've never heard of a YZ250 R. What year is it? I'm in the same boat as you kinda. I have a '01 YZ250. My bike runs perfect all day until it sits in my garage for a week and then I go start it cold. It seems like this happens to alot of YZ250 owners on this forum. It fouls 60 seconds after idling. Sometimes I can get past the fouling part and then it will run perfect all day. I live at the same elevation as you pretty much -1025 ft. w/ 70's weather main: 178 S(whatever the S means) just bought a 175 pilot: 48 needle: N3EJ and 2nd clip position air screw: 1.5 turns out (Ive never messed w/ it bet next time I am) My bike doesn't or has never bogged before and I think it has great throttle response but I'm not sure b/c I've only been riding for 5 months. My plug is always oily or a dry, black ash color. [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
new bike jetting
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