How to Change the Antifreeze in a CBR F4

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The antifreeze or coolant on your Honda CBR F4 is essential for helping prevent your bike from overheating. Replacing the antifreeze is actually somewhat tricky, as you have to remove a few of the CBR F4's components to drain the radiator, but it does not take long. It should only take your a little more than half an hour to change the antifreeze on your Honda CBR F4.

Things You'll Need

  • Phillips screwdriver
  • Drain pan
  • Socket wrench
  • Antifreeze
  • Distilled water
  • Turn the bike off and remove the screws securing the right air duct with a Phillips screwdriver. Pull the air duct off the bike.

  • Remove the eight screws from the left fairing with a Phillips screwdriver. Pull the left fairing off the bike.

  • Twist off the radiator cap. Place a drain pan underneath the radiator drain plug and use a socket wrench to loosen it. Allow the antifreeze to flow out into the drain pan. When done, tighten the plug.

  • Remove the cap from the reserve tank and drain the antifreeze from the reserve tank into the drain pan.

  • Create a mixture of 50 percent distilled water and 50 percent antifreeze. Pour the mixture into the radiator and reserve tank until they reach the "MAX" line.

  • Turn the bike on and rev the engine in short spurts for a minute. This will bleed the air system. Reattach the radiator cap and the reserve tank cap.

  • Reattach the left fairing and its screws. Reattach the right air duct and its screws.

Tips & Warnings

  • Do not use tap water for the antifreeze mixture. Only use distilled water.

References

  • "CBR F4 Service Manual"; Honda Motor Company; 2000
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