Lose your balance while you are wheeling and one important thing don't grab it too much. No need to go into the red zone because you can loop your bike and you don't want that. To pop up a wheelie in a smooth controlled way, body position is key. You need to transform the whole body weight as much as possible to the back and this will force the bike to pull up. What I mean with that, move your ass to the edge of the passenger seat, the upper body position, not on the front, don't pull with your hands but move to the back, stay there and once you're up just lean back and stay lean back and this will help you to pull up the wheelie control and in a really nice smooth movement. The last move that you need to combine with your clutch throttle and body position is the foot brake, it's there for two reasons. First is to smoothen up the landing so you touch it gently or if you have an SOS situation on your bike,