Modern Vespa

I noticed a very very small leak on right side of the bike near the muffler.
The funny looking thing with the two hoses coming out of it near the spark plug (yeah I know you're thinking technical genius). I've seen postings about this but can't remember what the part is called to do a search.

It's the water-pump cover. The leak is usually from one of the hoses. They can very easily have the clamps changed without disturbing them.

Sometimes it's trickier bits inside, but that is not so usual.

thanks