Maintenance & Technical > KX250 / KX125

KX 295/300 from a 1997-2002 KX250 or a 03-07 model better?

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joko:
Can't get a hold of Eric Gorr just yet, but was wondering if anyone had any experience with a late model KX250 vs. the 97-02 KX250 for the 295 cc kit?

DoldGuy:
Joko,
What do you want the bike to do?
DoldGuy

joko:
Will be riding intermed terrain outdoor mx tracks, looking for good low end & strong mid.

DoldGuy:

--- Quote from: joko on January 06, 2011, 01:41:05 PM ---Will be riding intermed terrain outdoor mx tracks, looking for good low end & strong mid.

--- End quote ---

Joko,
If you that is what you are looking for the 310 Kit is the way to go. That is the setup I used to run in the Vet class many years ago & it definetly had ALOT of controlled grunt that made clearing that double right out of a turn alot easier & with alot less wheel spin. Which bike do you currently own?
DoldGuy

don46:
Tried to do one on a 2006 kx 250, had the guys at Kustom Kraft do it, it was there first......and last. it never ran more than 5 minutes, the port configuration is so different than the older cylinders, once you bore it to fit the 310 piston the ports get really close and the rings hook the ports, not enough support. you could go to a like 265 or something but don't waste your money on the 300 ish

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