That was the problem, the last time I rode it felt like the engine wasn't delivering the power to the wheels, so I checked the oil and it was low, not even registering on the dipstick. I went to the Yamaha dealer and he sold me some yamalube 10-w30. The guy didn't seem to know much, he was more of a salesman than a mechanic. I thought that 10-w30 seemed a little lite for the gearbox, so I figured that I would seek some real knowledge before I drained and put it in. Thanks for all the great advice. I can't wait to get out riding.