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Ported head, 2002 250F

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I see Yamaha has a ported head package, but it states its a for 2010-2011..

Whe has the best program for the older YZ250F... Thanks

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Are you sure you want to invest that kind of money into a nine year old bike?

Porting, cams, carb, pipe.... I assume you have done the suspension, wheels and brakes already.

http://www.williamsmotowerx.net/

No, we use these engines on Winged Sprint go karts...we go to some places where we can do these mods to the engine..

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Jesse doesn't have a lot on his website but if you email him or call him he will know exactly what you need and I am very sure he will know how to set it up for Karts

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