Basic Sit-Down
"Sit-downs are the easiest wheelies to do, but the hardest to explain. There are so many different ways to wheelie a sportbike, and some methods work better than others depending on the rider and machine. I'll explain what I do--but keep in mind, other riders might be lifting it up differently.
"There are two kinds of wheelies: power wheelies and clutched wheelies. A power wheelie uses the bike's motor to get the front wheel up. You get the revs up near the bike's torque peak and goose the throttle to snap the front end up. On a 1000cc bike this is easy--just snap the throttle at around 6000 rpm and it wheelies. A smaller bike such as a 600 needs a little help. On these, I'll roll the rpm up higher, then chop the gas and snap it on again. Chopping the throttle will cause the front end to dive for an instant, and the rebounding of the fork will help the front end come up when you snap the throttle back on. On a 600, you almost have to open the throttle all the way to the stop to get the front end up under power. A literbike takes much less throttle--snap my CBR954RR to the stop and you'll be on your ass instantly. That's why I don't like power wheelies--you're dealing with a lot of power, and the possibility of looping the bike is greater.
"I prefer clutched wheelies; the front comes up quicker and you're lower in the rev range when you bring the front end up, so you're not going as fast and you've got more time to find the balance point before you hit the rev limiter. For a clutched wheelie, I'll pull the clutch in, just enough to cause the rpm to rise up to the torque peak, and then let it out quickly. I'm pulling the clutch in just slightly, just into the friction zone. The revs rise for a split second, and then I drop the clutch--don't ease it out--and back off the throttle incrementally as the front end comes up. The higher the front wheel goes the less throttle is needed to keep it up. Backing off keeps the bike from going over.
"Either way, on power or with the clutch, I keep my arms stiff, squeeze the tank with my legs and always cover the rear brake. If things get ugly, you just tap the rear brake and both wheels are back on the ground. If you're looking straight ahead, when you can't see over the bike you know you're getting close to the balance point."