O.K.-Here goes! The Kenmore machine I have is Model no.1516 zig-zag machine.It looks like it takes cams to ziz-zag and they are not with the machine. It runs beautiful,and hasn't a scratch on it. Are parts available? It's a light green color in a portable case. What do I actually have and where do I go from here? There's also a serial no.-0028349 and a motor model no.-5186