99 carb problems

Liamyz140

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Nov 25, 2017
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Hi guys in need of help iv got a yz140 the phase five edition from ooracing so it’s got a z40 lifted cam etc etc iv currently bought a https://www.ooracing.com/26mm-power-jet-ysn-carb-flat-slide.html
Iv currently got a 45 pilot yet and a 100 main jet at first it wouldn’t run at all but iv got her ideling perfectly now she revs up and revs down back too idle no bogging but soon as I get her on the road for a spin and underload she severely bogs down but when I fully open the throttle after about 2 seconds she revs fine but only on full throttle cheers guys!
 
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