A bit tongue in cheek because the truly annoying part of any of these issues is forgetting that one has seen many times and should have remembered.
There are some aspects of servicing Gen2 which are less than ideal, I thought a thread might help to inoculate someone. I forgot, again, on the marathon (12 hour day yesterday) servicing and mods: the clip nuts which hold the fan to the radiator mounts are not properly sized to hold the mounting ears.
Remove a bolt and the clip nut might stay in place until you move the fan, then the clip nut falls down somewhere. Grrr! IME, they usually go down in front of the lower rad tank and can be retrieved by a small pick up magnet.
I use pliers to squeeze the nut's clip so that it can just be pushed onto the ear, as should have been done at the factory. This is the same on every Gen2 I've seen but wonder if others notice the same, and more important, is there something happening which causes clip nuts to open? Maybe there's something going on which relaxes the clip but don't see what would be the mechanism.
Another issue is the two small black spacer "washers" located between the upper fairing and side fairing, retained by the two vertical black screws. Remove a screw and bump the fairing and then the search begins. A dab of silicone gasket maker should hold the spacer in place, or slip a piece of thin plastic over the screw to cage the spacer.
The wiring on the left side has to be carefully placed in order that it isn't snagged into the "hockey puck" pocket on the tank.
The lower side fairing bolts go into nuts in rubber grommets. If one is turning the bolt but it's not loosening, especially if one hears the classic dry rubber squeak, reach around to hold the grommet with your fingers. Not the best design but not a big deal because it's easy enough to reach/solve. When installing the bolt, don't push too hard or the grommet will be pushed out of the hole. Again, not a big deal but annoying.
What has been forgotten...?