The oil looked fine, but it did in my 650 when the head gasket blew too. It could just be overheating badly for some reason. I don't know why the fan doesn't run with the key in the on position if the motor is hot. My 650 did, but this one doesn't do that. The fan is running though. The overheat idiot light only flahed twice during the weekend, but it puked out coolant about 5 times. Then it would run fine for ride, then it wouldn't. I don't really know for sure what is wrong. The fact that it won't just start right up now is disturbing too.....................