Not too long back Doc279 had absolute fits concerning carburetor float bowl flooding.
Turned out to be sort of self-inflicted.
Well today, my brother which had previously worked on a Nissan 5 HP outboard, equipped with a Keihin carburetor 3 different times for a couple of different problems, had continuous carburetor flooding upon reassembly after normal cleaning.
He went back into the carb, doubled checked every normal thing and reassembled & reinstalled. STILL Flooding!!!!
Jokingly I suggested that he check the float bowl air vent for restriction. (I was thinking that it might just be an exposed hole, like many boat carbs.)
But noooo, it had 2 external black rubber hoses, which were routed outside of the engine cowling.
The Damned bugs had plugged both of them and the cooling water tell-tail pipe closed.
Thanks to Doc279's earlier issues, this one was fixed in less than a day.
ps, Thanks Doc279.