Hi all, I have a 2006 3 cylinder Honda 4 stroke outboard that went from running great to running terrible. I had some issues with it dropping a carb here and there so I cleaned them and got it running on all 3 cylinders. It ran fine, then after sitting for a week, it refused to go over 1/4 throttle, it just bogs. I pulled the thermostat and it was pretty nasty so I cleaned that out and replaced the t-stat with a new one. It idles OK, not great, and acellerates to 1/4 throttle hard, then dies. The fuel tank is vented, the plugs are good. The oil is clean and the water pump is moving water fine. I also added fresh fule and a little seafoam.
I am going to try replacing the filter and fuel pump diaphragm but wanted to see if there was some common issue with this motor that I am missing.
I am going to try replacing the filter and fuel pump diaphragm but wanted to see if there was some common issue with this motor that I am missing.