I have an 05 yz450 and it shows no oil on the dipstick. I have searched and searched with various findings. I pulled the clutch cover and stator cover and there were some rubber chunks in the oil, but the screen is still clean. I am unfamiliar with the oiling system on this bike. Am I going to burn up the motor or is oil still getting pumped up to the head and just not making it to the oil tanks which is significantly higher? What do I do about this? I really need help. thanks in advance.