I disassembled a '65FLH lower end . . . and these are the flywheels. It looks like someone tried balancing these in an unorthodox method??? I never like seeing all the holes opposite the counterweight (near the crank pin). The flywheels are in nice shape otherwise . . . and I have them dynamically balanced before reassembly. This could be the reason the motorcycle sat for years and years. It shook so bad it cracked the fenders, made your hands numb, and was an overall "buzzing" experience for the rider and/or passenger. "Honey, Let's Just Take The Car."
Ol' Sporty Boys from Illinois . . . and lots of valuable information has been gained from these two brothers. We always have a great time at the Davenport Swap Meet with them. They dig anything 1952-1969 in the K,KK,KH,KHK,XL,XLC,XLH and of coarse . . . XLCH !