Wheelies are very easy, but your body position needs to be correct. This is my first streetbike, but I've been riding dirt for over 20 years and can pull whelies easy there. Around my 3rd week on street I go tthe urge and while keeping my 3rd gear around 6k doing roughly 60-70 pop clutch just quickly and lean forward at the same time. Your front tire comes up quickly.
Just make sure your leaning forward and you have speed. If you try to be cute and doa whelie at like 10 miles and hour in 1st gear, you need great clutch control and should only be attempted by very experienced riders. This si where youtube shows idiots kissing their bikes goodbye.
Listen, if you really want to practice and have fun stunting, go by a $1000 dollar junky 250 ninja and play with that. You will also find that most stunt bikes have the rear brake moved to teh clutch hand. It can be alot of fun when done safetly, but dont try it on your new fz unlessyou just want a 1 footer doing at least 40mph, the lower the speed the harder it is to control.
my 2$