Hey guys, I'm new to this forum, and honestly to motorcycle maintenance in general. I recently bought a 79 xs650s, and I couldn't be happier except that it won't start currently. I know it started kind of recently and the owner before me said it had a slight oil leak. I checked the spark plugs and they're covered in oil. One has a blue spark now that I cleaned them and the other has a white spark. The best I can figure is that I may need to replace the piston rings. Help a newbie out? It sometimes fires a couple times but immediately dies out again.