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How do you change rear drum brakes on a Yamaha moto4?

Step 1: Remove the rear wheel

- Loosen the lug nuts on the rear wheel with a wrench.

- Use a floor jack to lift the rear of the motorcycle off the ground.

- Remove the lug nuts and take off the rear wheel.

Step 2: Remove the brake drum

- Use a screwdriver to remove the cotter pin from the brake drum spindle.

- Remove the large nut on the end of the spindle to remove the brake drum.

Step 3: Remove the brake shoes

- Remove the two brake shoes by prying them off the brake plate.

Step 4: Inspect the brake shoes

- Inspect the brake shoes for wear. If the brake shoes are worn down to the metal backing, they will need to be replaced.

Step 5: Reassemble the brake assembly

- Install the new brake shoes onto the brake plate.

- Replace the large nut on the end of the spindle to secure the brake drum.

- Insert a new cotter pin into the hole on the end of the spindle.

Step 6: Reinstall the rear wheel

- Place the rear wheel back onto the motorcycle.

- Secure the rear wheel with the lug nuts.

- Lower the motorcycle off of the floor jack.

Step 7: Test the brakes

- Pump the rear brake lever several times to ensure that the brakes are working properly.