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Yz125 bored to a 167

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I was looking to trade my 2000 kx100 with a 97 yz125 bored to a 167. Not really familiar with the bores, I've been looking for top end kits to replace the current one but can't find any pistons that size. Any opinions the bike? Should I do it or not?

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That's a bore and stroke engine there. Probably a an old Rick Petresen engine. Now a www.maxrpms.com They are custom pistons from them, great engines.

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When I go on that website it only shows the entire bore kits, doesn't sell the pistons individually

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that's where a quick phone call will come into play, email possibly. Calls are quick, easy and relatively painless. They sell replacement pistons or they wouldn't sell any kits to anybody.

Edited by DEMI

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