I have a 2001 Warrior and it is about 6 months old and the other day i was messing with the rotor and i noticed it was a little loose but it is loose at the axle so i tried to tighten up the big axle nut but i couldn't buge it so i dont no weither i should leave it alone like it is or what should i do the bike is still under warrenty so if anyone has any info on what to do let me know.......

2001 Blue Warrior
AC Front Bumper
DG nerfs
Rear Holeshots
150 Main jet
FmF megamax II pipe
Renthal Bars with red scott grips
K&N

 

My Warrior and Blaster and my brothers Blaster are all like that. If you grab hold of the rotor it will wiggle just a little. I have always just figgured thats the way it is. It has not lead to any problems and the brakes work great.

 

I would take it back and get it checked out...

 

Mine did it since new, no troubles out of it.

 

Could this be full floating rear brakes! I don't think so.

 

This seems to be a pretty common Yamaha thing from what I've seen. You need to tighten the big axle nuts. Also, while you're at it make sure the 22 mm nuts holding your hubs on are tight. All 3 Yamahas that I bought new needed all of these tightened a little while after I bought them. I would think that you would cause wear on your splines if they are not tight.