Did you get your bike from a lbs? If so, what about going to your lbs and just asking. I know we've had people do that. They purcahsed a bike, we ask if they know how to change a tire, and if they said no, we'll show them how to do it and the tools they need. Or they'll just come in and ask how to do it and we'll gladly show them. It works out well for both people, the lbs might get an additional sale (tube, pump, levers) and the new rider knows one of the fundamental repairs all riders should know. Even if they don't purchase anything, I guess it's just something we feel all riders should know how to do so it isn't a big deal to show them.

I honestly think if you just go in and ask, they'll show you!! Just try to go in when they're slow