You have convinced me to look for a CB 160 - I dont care its condition. Im not half the mechanic as many of you guys, but I guess this is how you learn.
I rebuilt an old 79 CT 70 last year (ill try to post some pics) - I never got it running perfectly, as it would idle fine, then bog down when I drove, I would have to reach down and half choke it to get it to run properly. I know its probably to carb, but I rebuild that and tried to set it back to factory settings. Its always bugged me and I think i need a new project bike to take my mind off my previous defeats ;)