My airbox drain is open as well. As long as I don’t overfill the oil, I only have a tiny dribble of emission from the airbox vent hose. It lands on the X-Pipe usually, and cooks. None of it gets to the rear wheel or rear disk as some had worried might happen. So, for me, it’s a bit sloppy, but a non-issue.
A catch bottle for the vent tube (like the one offered by SBN) would eliminate the slop altogether. This is something I might pursue. Richard-7 indicated that he was working on a potential solution that he would make available to forum members.
Eventually, forum members will develop solutions to all of the niggling problems, and then Norton can implement them on future models.
Yeah, that's how R&D should work. :lol: