2004 WR Parts Catalog

As of this morning the parts catalog for the '04 WR450F is posted on the Yamaha corporate website. Just for info the rotor and crankshaft part #'s are different than the '03 so maybe they did beef up the taper.

Go here and click on the 'Online Parts Catalog' icon

Yamaha USA

If I may ask what is your jetting on your 426? I'm originally from SD and now live in the Pacific Northwest. I'm curious to see if it differs drastically from mine.

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