How to Change Yamaha YFZ450 Front Brake Pads
When the brake pads wear down, an ATV loses stopping power, which can eventually damage the brake rotors. Changing the front brake pads on a Yamaha ATV is essential to maintaining complete control on the trail.
Watch the video above and follow the steps below to learn how to change the front brake pads on a Yamaha YFZ450R.
Tools and Parts – YFZ450R Front Brake Pads Change
- 3/8th ratchet
- Ratchet extension
- 12mm socket
- 5mm Allen
- Flat-blade screwdriver
NOTE: The brake pads on a Yamaha Grizzly YFZ450 differ slightly from the left and right side, so be sure to get the correct pad kit for each side.
Yamaha YFZ450R Front Brake Pad Replacement Steps
Step 1. Use a jack to get the ATV off the ground, then remove the wheel and spacer.
NOTE: Don't lose the washers behind the lug nuts.
Step 2. Loosen the two 5mm Allen pivot pins that go through the brake pads while the caliper is still in place.
PRO TIP: You don’t have to remove the pins yet, but they’re easier to break loose with the caliper still attached.
Step 3. Remove the two 12mm bolts that hold the caliper in place, then lift the caliper away from the rotor.
Step 4. Insert a flat-blade screwdriver between the brake pads and turn it to pry the pads apart. This will push back the pistons inside the caliper, making room for the new brake pads.
Step 5. Remove the two pivot pins loosened in Step 2, then lift the brake pads out.
Step 6. Use contact cleaner to clean off the caliperand the pivot pins to prepare them for the new pads.
Step 7. Insert the inside pad first, followed by the outside pad.
REMINDER: There are separate part numbers for the right side brake pads and the left side brake pads. Also, the outside pad is distinguished by the C-shaped hook on it, which rests over the collar for the caliper mounting bolt.
Step 8. Insert the pivot pins and thread them into place.
Step 9. Spread the brake pads apart, then slide the caliper back into place over the brake rotor.
Step 10. Replace the 12mm bolts that attach the caliper, then torque them to 20 foot-pounds.
Step 11. Apply red threadlocker to the threads on the two pivot pins, then torque the pins to 12 foot-pounds.
Step 12. Reinstall the spacer and wheel removed in Step 1, then torque the wheel nuts to 32 foot-pounds. Repeat the whole process for the other side of your ATV and you’re done.