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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
YZ250F Owners...
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[QUOTE="Combat767, post: 656913, member: 26406"] The piston expanded .001" 90 degrees opposite the piston pin area. You'd think it would shrink or wear, but it grew. Can you say odd! :think: The cylinder has some small marks, but fine otherwise. He's going to turn the skirt down .002" and see what it looks like. $150 - $160 for a new piston from Wiseco. The local shops haven't heard of this either. I guess we'll see how things turnout. Thanks everyone! [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
YZ250F Owners...
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