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<blockquote data-quote="Mihylo33" data-source="post: 222705" data-attributes="member: 408">Something as simple as tire pressure will have you climbing out of ruts. The springs probably out of spec. I would comb eBay for a set of stockers.&nbsp; To be sure that you have oems but they also might be shot out after 20yrs of ghetto cruising. You are looking to get .44kg springs. Stocks are .43.&nbsp; According to Race-tech. <a href="http://racetech.com/ProductSearch/12/Yamaha/YZ250/1999" target="_blank">http://racetech.com/ProductSearch/12/Yamaha/YZ250/1999</a>Racetech will get you closer than you can for now and after using Factory Connection to set up my stuff for racing I’ll never go anywhere else again. Jetting if you can go more than 2.5 turns out on the airscrew with no change in idle you need a smaller pilot. Also drop your needle 1clip (raise the clip up 1 notch) , but I think P.C. recommends another size. I like my pilot circuit just a hair lean for the soul reason I like the way it feels when rolling out of turns. Crisp with a blast of power.</blockquote>

[QUOTE="Mihylo33, post: 222705, member: 408"] Something as simple as tire pressure will have you climbing out of ruts. The springs probably out of spec. I would comb eBay for a set of stockers. To be sure that you have oems but they also might be shot out after 20yrs of ghetto cruising. You are looking to get .44kg springs. Stocks are .43. According to Race-tech. [URL]http://racetech.com/ProductSearch/12/Yamaha/YZ250/1999[/URL] Racetech will get you closer than you can for now and after using Factory Connection to set up my stuff for racing I’ll never go anywhere else again. Jetting if you can go more than 2.5 turns out on the airscrew with no change in idle you need a smaller pilot. Also drop your needle 1clip (raise the clip up 1 notch) , but I think P.C. recommends another size. I like my pilot circuit just a hair lean for the soul reason I like the way it feels when rolling out of turns. Crisp with a blast of power. [/QUOTE]

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