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All 650's Small hole in catalytic converter?

Jerry

2016
CBR650F ABS
May 18, 2017
The Netherlands
I left for work on my bike today, after 100 meters realized I forgot my wallet, turned around, parked the bike in front of my house, left the engine running and when I got back to the bike I noticed a puddle of liquid under the catalytic converter with tiny drops falling into it. I smelled the liquid, didn't smell of anything really, so I guess it's just water. As the engine was running, I could feel tiny air puffs coming out of the hole in the rhythm of the engine. Now I guess the hole is supposed to be there (some kind of condensation drainage probably?) but just to be sure I thought I'd double check here. So can anyone confirm/debunk my assumption?
 
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