Your description doesn't make me very optimistic. Perhaps take a video with sound and post.
Weird. Oh well.
I have installed those fittings on 2 VFRs. They are well made replicas and fit and performed perfect. Dude, you're not "DIY" out of this one....
It's just a remnant of the machining process. Kinda looks like a landing to center / hold a drill process perhaps. Don't sweat it.
You don't have many choices at this point. You likely broke them removing the carbs incorrectly. It was just the orings leaking until you...
https://www.ebay.com/itm/1983-HONDA-INTERCEPTOR-VF-750-F-COMPLETE-SET-OF-ALLUMINUM-CARB-FUEL-TUBES-/141542961168?mkcid=16&mkevt=1&_trksid=p2349624....
6, not even taking up floor space or part of the problem... [ATTACH] [ATTACH]
I was out of room 11 bikes ago.
"port"? Isn't that a crankcase-halves joining bolt? I would think where the oil pressure sending unit threads in would be the place to plumb in...
Fixed that for ya.
Past due to take this master apart and investigate.
Nice
DO NOT TRY AND REMOVE IT. You will mangle it attempting. Just keep soaking and trying. Some 3rd Gen carbs I recently rebuild had the same...
[ATTACH] [ATTACH]
Separate names with a comma.