A little progress!

CB 160 Machining

Finally, I had to resort to some good 'Ol yankee ingenuity! Out comes the hole saw, and after sawing and picking rings out- the pistons finally come free!

Honda CB160 Building!

Got ahold of a 1966 motor and frame the other day. Evidently the host bike had been sitting out for a while!
The pistons rings had rusted into the bores solid! I tried penetrating oil, brake fluid, heat, hammering, etc.