iammarcuse
Petty Officer 2nd Class
- Joined
- Oct 15, 2007
- Messages
- 131
I have a 1991 3.0 Mercruiser. I just got the boat and have no history for it. It starts up right away when cold and as the automatic chock pulls back it starts to die. It seemed like it might be flooding so I pulled the carb and rebuilt it with the new style spring loaded needle and seat, float etc. and adjusted the float as per Merc service bulletin. http://www.marineengine.com/discus/messages/12486/97_08-84745.pdf
I was expecting this to solve the problem. It did not.
The idle mixture screw is supposed to be about 1 1/4 turns out. It needs to be 3 1/4 turns out to idle the engine (that's where it was set before the rebuild also). And when you give it throttle the fuel shot from the excellerator pump stalls it.
I cleaned the carb with air when I had it apart and all the passageways seemed to be clear but I did not pull the jets etc.
Anyway, I am at a loss as to where to go from here any help would be appreciated.
I was expecting this to solve the problem. It did not.
The idle mixture screw is supposed to be about 1 1/4 turns out. It needs to be 3 1/4 turns out to idle the engine (that's where it was set before the rebuild also). And when you give it throttle the fuel shot from the excellerator pump stalls it.
I cleaned the carb with air when I had it apart and all the passageways seemed to be clear but I did not pull the jets etc.
Anyway, I am at a loss as to where to go from here any help would be appreciated.
