Started a thread in general but guess it really belongs over here. Picked up a $35 rusty AMF Roadmaster XL at a minibike show in Pennsylvania and brought it home to Canada. She's kind of sad right now and the engine was stuck. With a little oil and a wrench it freed up and I was able to get fire. Have cleaned up the carb and tried to start it last night but it seized up again. So after work tonight I did what I should have done first and opened it up. The rust wasn't just on the outside. Surprisingly the Piston and cylinder don't look to bad. The worst are the connecting rod bearings. Pressed them out and will go on a little quest to see if I can find some locally.