5.7 Mercruiser on Cruisers INC 2970

mattsoltesz

Cadet
Joined
Jun 13, 2009
Messages
6
Hello I have a1990 Cruisers INC with dual 5.7L Mercruisers. Port side done. Starbord side giving me trouble. Starts with startng fluid. If I pour some gas in carb it runs untill gas runs out then stalls. Then just turns over, assuming its not getting fuel. Changed filter, nothing suspicious. Any suggestions? Is there a way to test fuel pressure or blow line out in case of clog somewhere? Vaccum suggestions??
 

ormjgrouch

Petty Officer 2nd Class
Joined
Oct 8, 2012
Messages
144
Maybe needs a carb rebuild? pretty easy to do, alot of HOW TO DO videos.
 

NHGuy

Captain
Joined
May 21, 2009
Messages
3,631
You could start by removing the fuel inlet connection and cranking the engine a bit to see that fuel is arriving. Also check the inlet filter for clogs. If it's not that...what he said.
 

thumpar

Admiral
Joined
Jun 21, 2007
Messages
6,138
If you push the throttle forward while not running do you get a squirt of fuel down the carb throat? If not they you have an accelerator pump issue or no fuel in the bowl. Trace it back from there.
 
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