Today I decided I better check my air filter on the 2003 Goldwing that now has close to 120,000 Km on it. I've owned it since new and its been a great bike. I've only changed the filter once on it and that was like about 100K ago, so although I didn't relish the thought (and its been working fine as-is), I figured it was due for a change. The forecast is calling for rain over the next few days, so I dug-in. It took me about 2 hours to get the old one out...and it is pretty dirty. Heck, on the CB350F I could have its filter out in less than a minute! So much for progress with newer bikes. (Thank goodness I at least have the Shop Manual for the GL1800.)