Here are a couple pictures of the moped. This bike has not even had the dust from 15 years of storage wiped off. The head came off easily, and the cylinder easily loosened from the case. The piston is obviously rusted badly inside the cylinder. I made a "yoke" out of Brazilian ironwood to place between the case and the cylinder and attempted to drive the piston out of the back of the cylinder. I attempted, it defeated me. 3 pound sledge hammer hitting a hardwood dowel did not move the piston at all. Tomorrow I try heat, but how much, to what specific parts and for how long? I have propane and MAPP. Do I gradually heat the cylinder or the piston skirt or both? How hot can I go without damage to the cylinder or does it even matter? I assume the cylinder is going to have to be replaced, along with the piston and rings. Just looking for some experienced guidance.
I pulled the carb, and completely disassembled it. I didn't take 'before' pictures of the insides, but I have seen worse. Everything was soaked in a carb dip for two hours and brushed off, run under clean water, and I used an air hose to blow open passages and dry things off. It will need a rebuild kit
More progress to follow, I hope!