Once I stopped a mercury 20hp in the lake to tweak the carb screws. Then it wouldn't start. So i turned them back,,,,didn't start. My daughter was mad....at me...figuring i went too rich, I opened the throttle and pulled it 5-6 times to unflood it....was fine after that..
Didn't learn
Next I was out in the middle of a 14,000 acre lake. i had 3 sets of triple carbs for Johnson 70-75Hp. started and took off and ran better than before but was too rich at idle.....flooded the piss out of it.....used trolling motor to get to shore.....got a ride to my car/trailer
played hell loading it at night at the launch ramp.
Live testing is a bitch/ boats dont run the same on a garden house.