A friend of mine just recently bought a 09. We took it to a local track today and after the first 5 minutes of riding the bike started bogging under load if u turned the throttle quick, it bogged so bad that it would stall the bike. is this a common issue with this bike? We checked all of the connectors none were loose. We also looked at the throttle body and it looked clean. The bike also was running hot like it was real lean. Any help on would be great.