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jjj109

2003 wr450f cam swap?

4 posts in this topic

Hey everyone,

I'm sure a lot of you have been asked this question quite a bit. I have a 03 wr450f and I have a 2004 yz450f motor sitting around. I gonna swap the exhaust cam out. When I have the motor at TDC and the wr exhaust cam out can I just install the yz exhaust cam like im just putting her back together after doing a top end on her? Just line up the dots on the cams and the marking on the flywheel and its all good ?

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Yes. Swapping in a cam from any other YZ/WR 450 engine into a WR450, use the timing marks as they are, as if the cam were the stock one. Don't compensate or re-time them in any other way.

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Yes. Swapping in a cam from any other YZ/WR 450 engine into a WR450, use the timing marks as they are, as if the cam were the stock one. Don't compensate or re-time them in any other way.

Thanks gray, while im there ill check the valve clearences

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