03 cam

has any one here put a 03 auto decompresion cam on there 426

Many, many guys have done it to their YZ426's.

has any one here put a 03 auto decompresion cam on there 426

Check the YZ forum where the subject is pinned at the top, mountains of info in there.

PS, yes i have done it.

Yep, just because it is a YZ cam, no reason it won't fit in a WR... Just because it is an 03 cam, doesn't mean it won't fit in an earlier model... Just because your dealer tells you it is impossible, doesn't mean it can't be done... I know, I wrote the PDF... :)

David

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