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Powerloss at full throttle

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Old 07-12-2015, 05:20 PM
David mx 250's Avatar
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Default Powerloss at full throttle
My sons kx250 06 starts and runs perfect until you give it full throttle under load and then there's an instant loss of power for 1 or 2 seconds and then it's back on anyone got any ideas?
 
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Old 07-13-2015, 09:37 AM
klx678's Avatar
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What rpm and stock carburetor or different? Jetted in or not?

Sounds like the kind of lean stumble that would happen from lean jetting and/or whacking the throttle open at too low an rpm.
 
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Old 07-19-2015, 02:39 AM
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As mentioned above along with a possible air leak, especially since it is an '06.
 
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