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Dirt Bike Brands - Other
Understanding jetting on 99 YZ400
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[QUOTE="40+, post: 123566, member: 23685"] [b]99 yzf400[/b] Tony; Now that i've got my WR250F stoked out w/the grey wire mod and the YZ timing, it's time to get the trusty old steed (YZF400) running in top form. Would you shate your carb,etc. mods you have , as far as the idle to go stumble AND BACKFIRING PROB that they all have. I've never really spent too much time tweaking it, and it does need it.:) BTW, I'm still with the stock pipe; only mods are a PE suspension set-up and Pro Tapers. [/QUOTE]
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Dirt Bike Brands - Other
Understanding jetting on 99 YZ400
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