The Liist
You would have to get a longer string, but that'll probably not be good for your bow.

Bubba
There are two allen head bolts where the limbs connect to the riser. These are your draw weight adjustments. Make sure that you turn them out equally. One way to make sure they are the same is to screw them all the way in.... this would be the heaviest draw weight. Turn them out equally and draw it a few times to see how you like it. You can also take it to any dealer, regardless of the type of bow they sell and they will help you out. They should also have a scale for you to check your draw weight. Remeber that if you change the draw weight that you will have to resight your bow. Feel free to email me if you need any more help.