Mercury 1983 model 115hp RUNNING ROUGH

[j_martin]

Re: Mercury 1983 model 115hp RUNNING ROUGH

Is there a snowballs chance in hell that you got the ignition wiring swapped between cylinder 1 and 2.

If they're all sparking, and they get gas, and they don't fire right, or fuss and back fire, the wires are usually on wrong.

The black dirty plug is a clue.

hope it helps
John

 

[bexi]

Re: Mercury 1983 model 115hp RUNNING ROUGH

Well i think i got them right?
aren't they just all in order....
as in the top coil goes to the top cylinder, the 2nd from top coil goes to second from top cylinder etc?

 

[AMD Rules]

Re: Mercury 1983 model 115hp RUNNING ROUGH

Thats correct, but I believe John is suggesting you should check the green coil feed wires as well. As you can see in the diagram earlier, they are ordered specifically to ensure proper firing sequence.

 

[j_martin]

Re: Mercury 1983 model 115hp RUNNING ROUGH

Thats correct, but I believe John is suggesting you should check the green coil feed wires as well. As you can see in the diagram earlier, they are ordered specifically to ensure proper firing sequence.

.....and they could be in the wrong spot either at the coils, or at the switchboxes.

John