Thanks. I put my finger over it when the engine was running and I didn't notice any suction or blowing so at that point (not being able to see directly down the hole) I assumed it was safe and not used for anything.
Main reason I asked is because when I bought this mower new last year, I just happened to notice the hose that runs between the carb and middle of the engine block (vacuum I assume) was disconnected at the carb. I caught it before I used the mower much. I assume dirt could have been sucked straight into the carb/engine if that was left off
Anyway, just wanted to double check about that other part that looked like it might have had a hose.
Main reason I asked is because when I bought this mower new last year, I just happened to notice the hose that runs between the carb and middle of the engine block (vacuum I assume) was disconnected at the carb. I caught it before I used the mower much. I assume dirt could have been sucked straight into the carb/engine if that was left off