Seat has two positions, High and Low. Key in seat release. Remove pillion. Flip lever and remove rider seat. (From rear on left underside of seat.) There is a black plastic bracket with either H and L or on arrow on it (Don't remember which right now). Attached by grommets at the rear. Pull up..pivots in front. Move so the H or the L matches up to the arrow...black bracket slides fore and aft. Push back down into holes until you get a soft click and it's level again.
Now on the front of the seat compartment at the rear of the tank is a "slot." It has a plastic "door" or "spacer." Pull it out straight back. Replace it in either the upper or lower slot depending on if you are raising or lowering. Replace seats, remove key and you're good to go.
The handlebar has 3 positions. (There is a thread on here somewhere with pictures that will make it easier to see what you're doing.)
Uncap the access covers. You'll see two bolts and two nuts. Loosen the nuts and remove the bolts. Both handlebars can be lifted straight up together as a unit. Look underneath the handlebars at the tree. You'll see some cute little pins..they reside in some holes..three on each side fore and aft. Raise the handlebars so the pins clear the tree. Slide the handlebars fore or aft together. Slide the pins into the new holes, set and retighten and torque. Mine from the factory were in the middle position. Simple.
Both adjustments might take 10 minutes once you see what's up.