One of the most frustrating things to do on a Valkyrie is to install the lower part of the airbox. There is a trick I learned years ago from an unknown source on this website. I have used it several times and it works great.
The main issue is the rubber downtubes are spread wide and unless you have 8 hands, it's a PITA to install. Here's what to do:
Get some long zip ties or several short ones, run them through the front two downtubes and pull tight until they bow in. Repeat this for the center pair and the rear pair.
The airbox will now drop right in. Cut the zip ties and pull them out. The downtubes will now spread out right over the carbs. Finish hooking everything else up and there ya go.
