Ok the bike is a 2000 model so it is 22 years old. The antifreeze in it now is green. No telling what kind it is or how long it has been in their. Can I use a light mixture of 7.5 teaspoons of baking soda to 3 quarts of distilled water to flush the radiator. I'am thinking I need to do it at least twice maybe and then the last time just distilled water . Each time bringing it up to a heat cycle. I do not want to damage anything so I would appreciate your advice. Thanks