Thanks for the fast reply..
I was thinking some sort of drain but that great to know.
Whats a JDM bike?
A bike that was manufactured for the Japanese Domestic market rather than export.
The JDM bikes had a red "speed warning" light in the triple tree and would have all the warning labels in Japanese.
There's a few other minor differences.
It's possible that your bike, or at least parts of it, was imported from Japan. (Not by Honda, obviously.)
Most commonly by returning GI's back in the 70's.