10-30-2018, 03:55 AM
The designation of K (four pipes) and F (4 into 1) was fairly consistent across the 750, 550, and 350/400cc lineup in the '70's. Same with the CB (street), CL (street scrambler), and SL (then XL) (motosport) designations on most 100, 125, 175, 250 and 350cc models back then.
