I just got an 05 YZ250F. Sunday was my first ride on it. I rode for a total of about 2 hours. I checked the oil and everything and it was fine. I was just out in the garage playing around and checking out the different stuff on the bike trying to learn where everything is on the engine. I re-checked the oil and it does not even register on the dip-stick even when screwed in like the manual says not to. Now, the engine is 100% cold as I did not start it at all and it has been sitting for 2 days. Is this normal for a bike that has been sitting for 48hrs ? Nonetheless, I am changing the oil tomorrow night!