That is what you want to do; that's why you do it. You don't need motivation to do it, you want to do it and you do it. But asking for or trying to drum up motivation to do what you don't want to do (and I don't think most people enjoy doing chores) is working at cross purposes with one's self.

Motivation works best for me if I mostly do what I want to do or if I incorporate things I do not want to do in with what I want to do. If you want a degree in school, you have to figure out how to want to study "this" class in front of you; the class will not change, it just "is", one has to change one's mind about the class so it is something one wants.

Motivation cannot come from outside one's self because it is personal to each individual. One has to decide what is important to one's life and then it is not so hard to follow through. I don't find dull chores very rewarding to me so I don't do them very often, only when I feel I have to, which is a form of motivation. But I don't fret that I don't do them more often, I know myself and that I will do them when I have to so I let myself alone to do it that way.