Posts: 102
 
  Location: Bowling Green, KY | Most carbureted outboards don't like to idle with the motor trimmed in the hole shot  
position (tucked all the way under).  I think this problem is aggravated by cold   
dense water.  All these increase back pressure on the exhaust coming through the  
center of the prop.  I'm pretty sure the small exhaust port just below the cowling  
is just for "overflow" exhaust.  Over the years I've just got where I don't ask them  
to.  My outboards never get trimmed all the way down till just before I drop the  
hammer. |