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mwmx54

2010 yz450 idle adjust screw

6 posts in this topic

my idle adjust cold start thing does not seem to work, i pull it out and it should idle up a bit, but the idle doesn't change at all, i also adjust it all the way in, and back out and still the rpms don't change at all, my buddy has a 2011 kx450 and his seems to change he rpms a lot with just the slightest adjustment. and correct me if I'm wrong, but doesn't it have to be pulled out to adjust it? either way it doesn't make a difference with my bike. any help is appreciated.

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... doesn't it have to be pulled out to adjust it?

No, idle speed adjustment should be made with the knob in.

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yeah, the thing is there is no change in rpm's when its in, out, or when i twist it, in or out, the rpms don't change at all and it idles kinda low, i want to turn it up a bit.

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Mine is about 1800 rpms and it feels like there's almost detents when turning it. If I move it about 1/4 turn and I immediately hear the rpms raising or lowering.

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