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Dirt Bike Brands - Other
What jetting in mighty Mich!?
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[QUOTE="MichiYZ400, post: 147738, member: 24506"] Ok jetting guru's, heres the stats. 98 YZ400f, non mx used, woods only, 14/51 gearing, Stock head pipe,FMF power core2sa,stock jetting. I'm getting hesitation at WFO throttle when the engine gets near the rev limiter. Does this require just a main jet change, or the pilot jet as well? BTW 300+ sea level and in Michigan ( the weather can be 90+ one day and 50 the next ). Any Mich riders input especially wanted on what your experiences with jetting this beast! [/QUOTE]
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What jetting in mighty Mich!?
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