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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
1982 250yz power valve
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[QUOTE="JJDirt, post: 1400174, member: 120498"] I just redid the engine on my bike, deglazed it replaced the gaskets, piston rings, and o rings. I put all back together but when i went to finish up with adjusting the lever on the power valve i noticed the power valve itself sat one of two ways, 180 degrees different. I'm assuming the concave is either facing in or out, but the manual i have for the bike mentions nothing about where it should sit, it just tells me how to adjust it with the lever. Anyone able to tell me how it should go? Ex. Concave in at TDC. This is my first time tearing down an engine, I don't want to blow a gasket because it isn't sitting right. [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
1982 250yz power valve
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