I got my 2010 earlier this year. The previous owner said he thought it had around 60 hours on it. The bike was super clean, stock, and did not have much wear on it, so I believed him. I finally got a power tuner and connected it up - bike was on the factory tune and showed to have 37 minutes and 19 seconds according to the tuner manual - mmm:ss. I figured the ecu just starts over again once it hits the limit of three digits for the minutes elapsed time. I reset the timer and was then curious if it was minutes or hours format. I powered off the tuner, started the bike, let the tuner turn back on, then switched to the monitor, all while starting the timer on my watch. I ran the bike for several minutes, then killed it and went back into the monitor to check the elapsed run time - it showed 000:10, and my stopwatch had ten minutes on it. I'll test again but I think the tuner manual is wrong and it should be hhh:mm according to my test results.
Knowing this, my bike actually had 37 hours and 19 minutes on it, which given the lack of wear and tear, is totally believable. I also have the factory Yamaha F.I. diagnostic tool and I verified before using my power tuner on the bike that the bike mapping had never been altered by the previous owner with another power tuner.