How much of the Gold Wing tupperware do you have to take off to replace the GL1800 air filter? The pic tells it all.
I chose to replace the air filter myself in my 2007 GL1800 rather than pay the two hours labor the dealer wanted. The first time I did it it took 3.5 hours so they are not out of line chargeing two hours. However, a factory service manual which only cost $78.00 from my dealer, Green Country Cycle City, was all I needed, along with a lot of patience, to do the job myself. If you want step by step video instructions you can purchase the 16 DVD set of maintenance videos for the GL1800 from Angel Ride Enterprises. A wealth of information and online help for most any GL1800 maintenance issue is available by joining the GL1800 Riders Forum.
No real instructions on this site, just pictures of how deep you will have to dig in the big girl to get to the filter and what my filter looked like after 14,000 miles.
One note of caution should you do this yourself. Notice on the filter itself there are ridges which align with grooves in the airbox and airbox lid. There is a gasket in each of these grooves and I allowed the gasket in the lid to fall out during replacement which resulted in my pinching the gasket when I tightened the lid on the airbox.
Also, the screws which hold the airbox lid on are captive and if you will push them up to where they are held in place it makes lid replacement easier. Be carefull not to push the screw heads completely above their captive ears as they will fall out into the bowels of the bike when you tilt the lid to put it in place. (Do I have to tell you how I know?)
Patience and a flashlight will go a long way towards disconnecting all of the connectors which must be removed without damaging them. The manual does not have information on how each is released but if you look carefully at each one you can figure it out. A small screwdriver will release most of them one way or another. Unfortunately there does not seem to be any consistency plug to plug.