Bought a mint '84 Aspencade with a matching California Friendship I rig this summer. Got it from the 2nd owner, who had bought it from an estate sale three years ago. He also had a Victory and a VTX1800. He bought the hack rig for no other reason than to give his dogs a ride.
Don't have a dog, but what I've found is that little kids just love sidecar rides, so much so, some even ask for ride for a birthday present!.
Rich, check a few things out first. First off determine which rotor or if both are causing the problem. Then try switching sides with them. If it is just one, you can try removing it, rotating it to different mounting holes and remounting it. Sometimes those little tricks can take away a pulsating feeling
BTW, CXman...nice '78. Always thought they were one of the best years for the naked wings.
Rich, nice bike... your back will thank you for it. If you're coming over Saturday; bring the rotors. We'll chuck em up on the brake lathe, check the runout and maybe shave em if they have enough meat left. Hope you can make it.
Got a spare tach off a 1977, not sure if it'll fit? You're welcome to it.