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kx125 bord out 144

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just wanting to no if its better to leave standard carb jets or uprate to 144 jets can some one help me please some people say I can stay with standard. thanks

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Some people think that a 144 will need bigger jets. FALSE! A 144 will also make more vacuum and suck more fuel through the same size jet. You may even need to go smaller.

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My last CR125 I bumped to a 144 once the bottom end let go. Jetting was still the same and ran very well. 

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Some people think that a 144 will need bigger jets. FALSE! A 144 will also make more vacuum and suck more fuel through the same size jet. You may even need to go smaller.

THIS.  But most likely your good 125 jetting will be correct for your 144. 

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