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Board index » Questions & Answers » Honda CR, MR & MT

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robertdavis
PostPosted: Wed Jun 29, 2005 5:48 pm 
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Joined: Mon Jun 20, 2005 2:02 pm
Posts: 6
I'm going to be taking my cylinder to a machine shop to get it bored since I'm putting in a .40 over piston and rings. Back in the 70's when I was racing MX (I rode a CZ400 yellowtank), we used to mill the heads to increase compression. Anyone done that on a CR250M and if so, how much did you get them to remove? Notice improvement?

Thanks,

Robert
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