Three-spoke rims is not a big deal IMO although its not what you paid for. Call Star and complain.
The radial caliper doesn't care if the rotor is '02 or 06 style since dimensions are the same for both (except #bolts as earlier).
BTW only the front calipers/cylinder are different. The rear brake remains the same '02-'08 including rotor.
Hopefully you have the '06+ exotic front radial calipers and the slightly taller (more volume) front master cylinder. Its doubtful they would swap all that out so I'm sure you are okay there.
Here's the differences in the brake system part numbers in case helpful to you: http://rswarrior.com/forums/p/114111/930545.aspx
Star's parts website to connect each part to the name Star calls it: http://www.starmotorcycles.com/star/parts/home.aspx
Yamaha Motor Corporation, USA
6555 Katella Avenue
Cypress, CA 90630
Sales, marketing and distribution of Star Motorcycles.
Customer Relations
(800) 962-7926, press "1" for Star Specialist.
parkinglot:
Dumb queston.. what year did the warrior go to 5 spoke wheels, or does it just depend on what day it was built?? I have an 07 bought brand new with 4 miles on it and from what I have gathered so far...it should have 5 spokes.... any help appreciated.