Really hot here today,think I'll dial in the spark on the 76 k and the unchopper in the a.m. and get some riding time in.
Thanks for the thumbs up guys.
Goldarrow the burnt orange 550 above is a k model. The easy quick tells for the k model is the tank, carbs, elongated sidecovers except on the 76 K they are shorter, and sometimes the elongated seat, on the 77 k the rear light has a change , it's more compact and doesn't have that long chrome ridge from seat to lamp ,a little cleaner but equally as attractive as the old style. When I take apart the next one ,which is a K , I can take pics of the F model counterparts side by side with the K models so that identifying 550 by it's parts will be easy , if anyone is interested, I'd do that.