how to bleed rear brakes on goldwing 1500

Bleeding the rear brakes on a Honda Goldwing GL1500 involves removing air from the brake lines to ensure proper braking performance. Here are the steps to bleed the rear brakes on a Goldwing GL1500:

Tools and Materials Needed:

  • 10 mm wrench
  • Brake fluid (DOT 4 or DOT 3, as specified in your owner’s manual)
  • Clear plastic hose
  • Brake bleeder kit (optional but recommended)


  1. Safety First:
    • Ensure the motorcycle is on level ground and the engine is off.
    • Put the motorcycle on its center stand for stability.
    • Wear safety glasses to protect your eyes from brake fluid splashes.
  2. Locate the Brake Bleeder Valve:
    • The rear brake bleeder valve is located on the rear brake caliper. It’s usually on the inner side of the caliper facing the wheel.
  3. Prepare the Brake Fluid Reservoir:
    • Open the rear brake fluid reservoir cap located on the right side of the motorcycle, usually under the passenger seat. This will allow air to escape more easily during the bleeding process.
  4. Attach the Clear Plastic Hose:
    • Attach one end of the clear plastic hose to the bleeder valve on the rear brake caliper. Make sure it fits snugly to prevent any air from entering the system.
  5. Prepare the Bleeder Kit (Optional):
    • If you have a brake bleeder kit, follow the manufacturer’s instructions to use it. It can make the bleeding process more efficient by creating a one-way flow for brake fluid and air to exit.
  6. Bleeding Process:
    • With the hose attached to the bleeder valve, have a helper gently squeeze and hold the rear brake lever.
    • While your helper maintains pressure on the brake lever, use a 10 mm wrench to slowly open the bleeder valve. Brake fluid, along with any trapped air, should flow into the hose.
    • Close the bleeder valve before your helper releases the brake lever. This prevents air from being drawn back into the system.
    • Repeat this process (squeeze, open valve, close valve, release lever) several times until you observe no air bubbles in the clear plastic hose. Keep an eye on the brake fluid level in the reservoir and top it up as needed to prevent it from going too low during bleeding.
  7. Final Check:
    • Once you’re confident that there are no more air bubbles in the brake fluid exiting the bleeder valve, close the bleeder valve securely.
    • Remove the clear plastic hose.
    • Top up the rear brake fluid reservoir to the recommended level with fresh brake fluid.
    • Replace the reservoir cap and ensure it’s tightened properly.
  8. Test the Brakes:
    • Carefully lower the motorcycle from its center stand.
    • Start the engine and gently squeeze the rear brake lever. Ensure that the brakes feel firm and responsive. If they do, your rear brake bleeding process is complete.
  9. Cleanup:
    • Clean any spilled brake fluid from the motorcycle’s body, frame, or wheel to prevent damage to the finish.

Always consult your Honda Goldwing GL1500 owner’s manual for specific instructions and safety precautions, as procedures may vary slightly depending on the model year. Brake maintenance is crucial for safety, so if you’re uncertain about any step, it’s advisable to seek professional assistance or consult a qualified mechanic.

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