I ride a 1974 CB 750 Honda(K4),I also have a 1972 CB 750(K2).I notice you call yours an F;the models from 69-75 are designated K and after that they are called F, is this a U.S. assigned model #?It can be confusing when trying to connect with someone to buy parts!Like a L side cover for the ´72...anyone got one?