Recent content by mercsmp

I have a 2006 Mercury Optimax 90 HP. The up power trim works, but the down power trim does not. When I press the down power, there is no sound and nothing happens. I swapped the UP relay with the DOWN relay and the symptoms stayed the same. I bypassed the relays by removing them and jumping...

Idle stabilizer and bias circuit questions with pictures Idle stabilizer and bias circuit questions with pictures I have a 1982 Mercury 115 6 cylinder motor. 1. Is the black box in this picture the idle stabilizer? 2. What is the cut wire below the box supposed to be connected to? It appears...

I had someone look at my 1982 115 Mercury 6 cylinder outboard because it would idle fine but would go dead as soon as you gave it any throttle. It acted like it was not getting fuel. He told me that it was a faulty switch box because when he disconnected the white/black jumper wire between the...

Hi all. My motor was running fine until I replaced the stator. My brother used my boat and after fishing all day could not get it to start. When he brought it back to me, I disconnected the line coming out of the fuel pump and tried to crank it to make sure the pump was working. It was. I...

I have a 1982 Mercury 115 inline 6 cylinder. The motor stops when I go just a little faster than idle. It idles perfectly and runs at a slow speed perfectly. When it stops if feels like it is starving for fuel. When I push the throttle slowly, I can tell at a certain point that it is about to go...

I have a 1982 Mercury 115 inline 6 cylinder. Does anybody know how to test the switch boxes? It will start fine and will go to full throttle in neutral but when I put it in gear and go faster than very slow speed it will shut down immediately. I am trying to narrow down what the problem could be.