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Your cat also looks angry about the paint.
You can tweak a rotor back into line if it isn't kinked. If you have access to a dial indicator and magnetic base (rather cheap at Princess), you can set the indicator needle on the rotor face. As you spin the axle (with the caliper removed and safely attached to the upper shock area), the dial indicator will show you which parts of the rotor need to be adjusted and by how much. You can use a large adjustable wrench (aka Crescent wrench) over the edge of the rotor as a lever, and gently bend the rotor back into shape. If you can't obtain a dial indicator, you can do it by eye; just take your time.
My buddy did this recently on his WR250, because the rotor wasn't grooved, only slightly bent. It worked great, and saved him the cost of a new Yamaha rotor. 8O
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Weldangrind
"I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
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