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switching tranny's

Posted: 06:23 pm Dec 11 2010
by SAPPER
hey guys i was wondering if you could take the tranny out of a kx125/250 and make it work in a kdx motor?

Posted: 08:58 pm Dec 11 2010
by dfeckel
I don't think the KX tranny parts will play well with the KDX cases. I don't know for sure, but I think it's unlikely.

Posted: 11:37 pm Dec 11 2010
by rbates9
If you wanted the KX tranny than why not have the KX 250 engine? The transmission is part of what makes the KDX a KDX.

Posted: 10:12 am Dec 12 2010
by scheckaet
y?

Posted: 11:43 am Dec 12 2010
by SAPPER
just wondering cuz some1 was sayin that u could swap a kx125/250 tranny into a kdx200/220

Posted: 03:29 pm Dec 17 2010
by bulabula09
check the part numbers on the trannys...if most of them are the same then it just might work...some fabrication may be involved im sure though...i use HLSM.com for all my part numbers...they have just about every make and model on there in an exploded view.

Posted: 04:23 pm Dec 17 2010
by rbates9
But why would you want to? You would loose a gear and the rest of it probably wouldn't be good for what a KDX was meant for.

Posted: 05:20 pm Dec 17 2010
by bulabula09
i agree with rbates on this one...the KDX is built and geared for hard trails riding..not high rpm MX racing..but if you REALLY wanted to try a swap..then the part numbers is the way to go methinks

Posted: 05:22 pm Dec 17 2010
by rbates9
I have a KX 250 transmission I could sell you if you want to try it.

Posted: 05:45 pm Dec 17 2010
by scheckaet
1: no advantage for wood application
2: cylinder and bottom end won't fit (at least not on a 125)

Posted: 11:38 pm Dec 17 2010
by SAPPER
what if u wanted the 200 or 220 for mx the kx tranny would be best for it if it fit right?

Posted: 11:45 pm Dec 17 2010
by scheckaet
i'd get a 250 and be done with it, easier, simpler, better...

Posted: 12:44 am Dec 19 2010
by bulabula09
i would inagine so..id look at the 125 tranny assemblies first..probably the closest fit is gonna be there...you must be trying to stay in a specific class i take it?