JMichael
Well-known member
I'm trying to help a friend with his outboard. I've got it narrowed down to knowing the issue is fuel starvation because I can keep it running if I squirt fuel into the throat of the carb. The motor will start and idle, but as soon as you start to open the throttle it will bog and die. The only other abnormal symptom is that it will be sitting there at a high idle running great, then suddenly it will (cough/sneeze/backfire thru carb) and die. Although I have not soaked the carb in a vat, I've cleaned it thoroughly twice now with carb cleaner and compressed air and I've checked the float height. The primer bulb stays firm at all times, all fuel lines are in great shape and the fuel filter bowl (clear) shows no sign of air in the fuel system. I've checked the reed block and it appears to be OK. I have noticed a puff of smoke when it coughs that appears to be from the base gasket leaking, but I'm not sure if that can cause the symptoms I'm seeing here.
Now for the part that will make everyone close this thread. It's an 88 15hp merc. I know most of you are not merc guys but an outboard is an outboard when it comes to diagnosing mechanical issues. So does anyone have any ideas that I haven't covered?
Now for the part that will make everyone close this thread. It's an 88 15hp merc. I know most of you are not merc guys but an outboard is an outboard when it comes to diagnosing mechanical issues. So does anyone have any ideas that I haven't covered?