• Remove the tank from the motorcycle, if necessary. Refer to the owner's manual on how to do this if you have one, if not, you can apply these basic techniques: Unhook any gas lines, or vacuum lines, depending on the brand of motorcycle. Some motorcycles are equipped with fuel valves on the gas tank. If yours has one, you'll need to remove it. Also remove the low fuel sensor, if your motorcycle has one. Block all of the holes in the motorcycle tank. You can use a short piece of hose clamped onto the fittings on the tank, and closed off at the end with a bolt. Dump the bag of BB's into the motorcycle gas tank and add the 1/2 gallon of diesel fuel. Shake the tank vigorously. The BB's will knock the rust, or any other debris, free and the diesel fuel will keep the particles suspended so that they will dump out. Open the gas tank cap and look inside the tank. If it's not clean enough to suit you, resume shaking until the rust is removed to your satisfaction. Pour out the diesel fuel and BB mixture. Shake the tank to make sure you have removed all of the BBs. Flush the inside of the tank out thoroughly with gasoline to remove all traces of the diesel fuel. Your tank should now be rust free and ready to put back on the motorcycle.
    • RareCatch
      Excellent Jan.16
  • take the petcock off and flush fuel trough it until clean

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