I changed my main drive belt today, figuring out a little sothing while doing it. Many DIYs suggest that you remove the fan to do it. I decided very early on that I would not do that. Turns out that a good thing to do is to remove the airbox. That gives you plenty of room to work the belt around and loosen the tensioner. Two nuts hold it in place, 10mm. Very easy to take out/put back in. Just thought I'd let everyone know what I learned today.