2000 Merc 40 - 4s Adjusting

MdCrappie

Cadet
Joined
Jan 19, 2009
Messages
6
Trying to figure out how to adjust the Pilot Screws on my carbs. This is a 3 cyl 4 stroke. The manual says nothing about the screws.
My motor will stall when Idling for an extended time. I checked the screws and found the following:
Top Carb - seated
Middle Carb - 1.5 turns out from seated
Bottom Carb - seated
I'm guessing this is part of my problem
Other then not running after extended idle the motor runs great. Smooth acceleration and smooth running at all other rpm's.
 
Top