I have a 2-10-2 I recently bought and it is lurching at low speeds. It is barely noticable, but I would like to get it fixed. I checked the wheels, they check out good. I lubed averythnig, not too much, not too little. Is it just that it needs to run for a while? Does anyone else have this problem? Could it be the start of something bad? All comments and suggestions appreciated.

I have engine product number 81708 and it seems to start and stop all over the track. Is there anything wrong with my engine that can be fixed easily? I really just want to fix it at home and not have to send it in and a wait a while for it. I first suspected quartering issues. Anyone have an idea on whats going on?