First of all there are two major ways of doing wheelies you can pop the clutch if your bike has a clutch (Usually around 100cc's or higher) or you can twist the throttle and pull your body back towards the back wheel IMPORTANT: Always make sure your foot is on the brake pedal because if you tip back past the balancing you can tap the back brake to come back down. If you want to use your clutch I would recommend 2nd gear pull in your clutch and rev up your bike a little and then let go of the clutch and lean back don't start off crazy take your time and get comfortable on one wheel. If you don't want to use your clutch (My personal favorite) youll want to sit back close to the back of the seat (easiest in 2nd gear) and stay in the low rpms and then at the same time lean back and twist the throttle make sure to use throttle control.