If indeed the Hayabusa is losing its rod bearings, check your oil level in a given spot when it has sit for 12 hrs(min.) Then go for a good flight and when you get back, recheck your oil level in the same spot. If the oil level is higher by more an 1/8 of an inch, then the balancer is most likely whipping up the oil and causing air to mix in with it. (the balancer is spinning at twice crank speed) This will under certain condtions probably cause bearing to crank mating. To solve/minimize this possible problem, one can remove the balancer. If this is not an option(warranty etc.), make sure your levels are exact and that the oil you are using have very high anti-foaming qualities. and of correct weight. Also is it a Motorcycle oil. I can hear the debate over oil already, but the main difference between engine and motorcycle oil is its additive packages. But I don't want to get into a disscussion on oil types. I removed the balancer out of my 92 Zx-11 three years ago after 25,000 miles. The first thing I noticed was the oil level no longer increased between 1/4" - 5/8" after running it as little as 5 min. It would take anywhere from 12-24 hrs for the oil level to return to "normal".