.80 over 03 cr250 into a 265

Joined
Aug 5, 2007
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#1
has anyone done this yet also.i thought about doing it.but i was told that the exhaust bridge has a better chance of cracking cause the honda bridges are thin.and how much extra power would it give me.would i gain some on the botton end or just on top.the bike is already ported from varner motorsports.it was like this when i bought it.any help and info would be great.thanks
 
Joined
Nov 28, 2007
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#2
i had my 1999 cr250 done recently, but its at the shop getting some bugs worked out (the bottome end was horrible before AND after the kit). I'll let you know when I get it back
 

tcuda499

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Dec 2, 2007
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#4
I wouldn't bother with it. If it needs a bore I would just go big enough to get the cylinder back in spec. I would rather have a little more reliability than some minor power increase that you would probaly never feel and the risk of engine damage.Unless you race and need to squeeze out every bit of power than there are better ways to improve power out of your bike. Just my opion though....