While checking some things on my 450 i finally got the bike to start and was running fine. I forgot to hook up the kill switch si i turned off the petcock and was going to let it run dry. Then noticed it was starting to dump radiator fluid from the vent line.Also checked my oil level and it showed to have none, which i knew the ride before i had changed it and there was oil in there. So i added more than a quart to it and this thing never did show up on the dipstick and i did notice that the coolant from overflow was cold, radiators were both hot though. Is there a common shaft or sprocket that drives both oil pump and water impellor? I did drain the oil from the frame and there was oil in there but man it was black for just two rides, as if oil has not been circulating.