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2009 crf250r float bowl on a 2005 crf450x carb?

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I want to put a Boyesen QS3 on my 2005 CRF450X. I know I have to remove the check valve ball, spring and plug from the 05 float bowl to install the QS3. Does anyone know if I can just mount the QS3 on a 2009 CRF250R float bowl and bolt it right up to the 2005 CRF450X carb?

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Rite on, thanks! By the way, after I got it I read a couple of places that they didn't work that good. Any opinions or comments?

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Just did a search and found your comments about it in a thread under YZ/WR 250F. Shoulda did a search first 👍 ......next time.

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The only thing good is the ALJ. Everything else is marketing hype.

So unless you regularly tweak the jetting for the air density and type of track/type of race you are doing, it is a waste of money. Sadly, it is true for a lot of aftermarket parts. A lot of hype and little reality.

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