This sounds like exactly what cobradaddy said. I don't have a gen 4, but they do have some sort of electionical wheelie control/traction control. Try messing with your TCS and pop them. BE CAREFULL when popping wheelies on your 10r. I don't mean that as in don't do wheelies because I'm a wheelie guy. I mean, don't rev your shit high then pop the clutch. That's how you 12 O'clock your bike. For long, slow wheelies I usually start 35-40mph in 2nd gear and clutch them up. Like magic, comes right up.
"Never shoot a large caliber man, with a small caliber bullet."
GEN 3: "Stock"
2009 crf 450r