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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
YZ250 big bore kit
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[QUOTE="rockers109, post: 1161370, member: 35803"] If the work is done correctly on the cylinder and of course it's installed and tuned correctly you can definetly benefit from overboring the cylinder. Every bike I ever had I always eventually added more power by overboring it and some porting it. I just got a 265 cylinder for my rm 250 from Eric. I rode it for the first time today and boy what a difference, pulls much harder out of turns and pulls longer on straights without the hard hit that the stocker had. [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
YZ250 big bore kit
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