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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
Yz250 Top End
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[QUOTE="eagles22793, post: 1382273, member: 90427"] I have a 2000 yz250 that i am doing the top end in it. I been researching and I am not sure if i should get a stock piston and drill out the intake side or get the pro lite piston. I am running 108 octane fuel 40 to 1 mixture with an fmf electronic cdi box. Whick piston is best for my bike and is drilling out the intake side of the piston a good idea? [/QUOTE]
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Forums
Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
Yz250 Top End
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