rode my bike about 25 miles no problem. parked for an hour and rode for another 10 miles then it starts to run funny. if i rev to past 12k it would get to 12 then drop down to about 9k then back up, all while holding the throttle open. it has a fresh tank of gas. no FI light. eventually on my way home it lost power on me twice. any known problems or issues i should check 1st?