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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
YZ250 Jetting Problems
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[QUOTE="steve125, post: 844153, member: 20272"] For whatever its worth here's my jetting spec for my 05YZ250. Jetted at sea level, to 500ft. VP ultimate 4 race fuel. 60 degrees and above 165m std needle 2nd clip 45 pilot air screw 2.0 out 40-60 degrees 168/170 std needle 3rd clip 45 pilot air screw 1.5 to 1 3/4 Both settings, no idle is run, idle screw backed out untill slide closes. [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
YZ250 Jetting Problems
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