Ahh.. As usual.. I've got a completely different "take" on this subject. Also as usual, I'd like to start - not at the beginning - but before the beginning.
What is a wheelie ? It is any time the front wheel is off the ground - 1 inch, to coming over on top of you (whereas the bike rides you.)
What is "riding a wheelie ? It is when the front wheel is intentionally kept off the ground by actions of the rider.
Now lets introduce the concept of "Throttle discipline". We are only talking about powerful bikes here (such as my FE650E, KX500, and a unmuzzled FTR) - bikes whereby the throttle must be "respected" as nonjudicial use of the throttle will create hospital stays.
Learning to modulate the throttle, in all situations, in such a way as to remain safe, is mandatory. Once achieved, a peep will have "throttle discipline". Hopefully this is achieved without damage to man or machine.
Now, IMO, the most "fun with wheelies" with a FTR, by a "newbie" , is by simply practicing the violation of throttle discipline when leaving a stop sign/light.
The practice regime is very simple: Let out the clutch and begin a normal rollout from the stop sign. From a slow roll (at or under approx 10 mph) gently roll into the throttle to create an aggressive acceleration toward a 2nd gear shift. Now, simply practice creating ever-more aggressive accels - do this in small incremental increases in accels, over time, and at your own pace. At some point during this process, the front tire will begin to lift off the ground slightly. At this point, continuing to engage slightly more aggressive accels will cause the tire to rise higher. The tire will fall back with the shifts to second or if throttle is cut/chopped..
Very soon, you should be able to raise the tire 6-8 inches and keep it there throughout 1st gear !
KABOOM ! You're riding a "throttle only acceleration wheelie" safely and securely - giggling out loud, like the sissy you are..( or use to be )
P.S. My test ride of the FTR - even without frontal lobes, doing the above was effortless and easy for me, so I know it will work for anyone..