Maintenance & Technical > KX250 / KX125

Bigbore kits

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gowen:
Eric Gorr used to do 310 kits for the KX's. Contact him, he may still have some laying around.

kx_rider53:

--- Quote from: gowen on January 22, 2007, 06:01:42 AM ---Eric Gorr used to do 310 kits for the KX's. Contact him, he may still have some laying around.

--- End quote ---
You would remove the powervalve for that correct? I think thats a waste IMO.

gowen:

--- Quote from: kx_rider53 on January 22, 2007, 08:42:09 AM ---You would remove the powervalve for that correct? I think thats a waste IMO.

--- End quote ---

It's been awhile since I looked into it, but last I checked it still had the powervalves. Just cut and modified.

And there is no replacement for displacement.

kx_rider53:
That is true, but i've heard that the power can get useless. I've never really heard about a kx 310, but i heard the Cr330 was a top end screamer, and very hard to control. I dont really need all that, and would just stick with a 285 kit. Just my take on the situation.

YUNGGUNNAZ:
310 kit retains the powervalve with slight mod.sleeve gets bored close to cylinder studs but no problems there.head chamber will have to be opened up to fit bore and squish rewoked.ports need to be redone(shapes and widened because of the bore).working on one now with the addition of a long rod and spacer plate.once decked and ported correctly and fitted with right pipe design,it should get with the program.

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