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Yamaha MX & Off-Road Dirt Bikes
02 YZ250 P/V Install ?
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[QUOTE="Studboy, post: 677787, member: 26867"] I am putting the powervalves back into my 2002 YZ250. I am confused as to what way the secondary P/V guides go??? Those are the ones on the edges of the main P/V rod that open the secondary P/V's??? I have a shop manual for the bike, and if I put it in the way that it shows, it doesn't open the secondarys when the rod is pulled. If I put them in the other way it doesn't seem right either. Are the secondarys supposed to open on exhaust pressure or what? I am confused!!! Thanks guys! (And girls.) :) [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
02 YZ250 P/V Install ?
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