* 12mm socket wrench
* 14mm socket wrench
* Flat-head screwdriver
* Needle-nose pliers
* New rear brake pads
* Brake cleaner
* Safety glasses
* Gloves
Instructions:
1. Park the YFZ 450 on a level surface and turn off the engine.
2. Put on your safety glasses and gloves.
3. Use the 12mm socket wrench to loosen the two bolts that hold the rear brake caliper in place.
4. Use the 14mm socket wrench to remove the two bolts that hold the rear brake pads in place.
5. Once the bolts are removed, use the flat-head screwdriver to pry the brake pads out of the caliper.
6. Use the needle-nose pliers to remove the brake pad pins.
7. Clean the caliper and brake rotor with brake cleaner.
8. Install the new brake pads and pins.
9. Reinstall the brake caliper and tighten the bolts.
10. Test the brakes to make sure they are working properly.
Here are some additional tips for changing the rear brake pads on a Yamaha YFZ 450:
* Make sure that the new brake pads are the correct size and shape for your model of YFZ 450.
* Be careful not to damage the brake rotor when removing the brake pads.
* If the brake pads are worn down to the metal, you may need to replace the brake rotors as well.
* If you are not comfortable changing the brake pads yourself, you can take your YFZ 450 to a qualified mechanic.
