What they basically are saying is. If the oil level is at the top of the dip stick and you ride wheelies ore up steep terain alot the oil will puke into the air box through the crank case vent tube. This is where your oil is coming from like SWBF said just fill it to the half way mark on the dip stick and it will help. Also keep a check on the oil level from this also. This caused me some problems from not checking it so often between oil changes.
post edited by bruteallmighty05 - 2008/03/04 20:49:19