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2010 KX250 ECU on KLX250??

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I would like to upgrade the current ECU. I did the mod to unleash those nearly 3000rpm in 5th and 6th gear, however I need much more. Is it possible to swap KX ECU into KLX-both are EFI:banghead:

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I´m not entirely sure what you want?

First of all, neither the 2010 KXF or KLX is EFI. They have carburetors.

Do you have a KLX and the problem is that it has a very low rev limit?

You should borrow a friends CDI unit and see if the connector fits. You should also compare each connector´s pin assignment to be sure it will work, not just fit.

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the problematic bike is 2009 UK KLX250 EFI-the bike is FI for sure-I followed some thread in TT which really helped the upper rpm, however this bike needs more, low to mid..

I wanted to borrow and ECU unit from FI MX Kawasaki a friend have-he said it is 2010 KX? 250..I am not familiar with the exact name KXF,KFX or whatever ..just need some better ECU....PCV is a option as well

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I doubt anyone here can help you with your problem.

In the U.S. the KLX 250 has a carburetor.

I would go to a local dealer or just try to swap the parts over from another bike.

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