wr250x rims 2009

I just got my new bike deliver today. and the rims" spokes "are very rusted. any suggestion?

Congrats on the new bike.
Pretty sure factory spokes and most aftermarket ones as well are stainless. I would get cleaner meant for stainless and follow the directions. If you get any on the rim make sure you clean it off pretty quick as the rims are aluminum or powdercoat and may not play nice with the stainless cleaner.