Posted June 16, 20159 yr Hi my ybr 125 has just had a new fuel pump . But now she idles fine but when I touch the throttle she dies down and cuts out . Sometimes I can get her to revv all the way if I do it slowly . Any ideas ? Also my mixture screw ( if that's what it is called ?) is completely worn down ? Anyway to change that or do I need a new throttle body ?
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