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YZ 125 jetting problem

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So we have a 05 YZ 125 we have been trying to figure this problem out for some time now.


Bike idles fine, but in low speed low gears it sputters and bogs  REALLY bad. This was happening in all weather


Bottom and top end are fresh, reeds are few months on them.


took carb off, jets looked clean  running a 410 jet



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