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Anyone have any Mercury knowledge?

D

Dmorency

Member
I just bought a 90 hp mercury, model 1c90412dd. The #1 plug has no spark, the other two both have spark. I downloaded a manual, but the manual shows 2 wires on my ignition coils, mine has a plug with 4 wires. The manual shows a "switch box", mine does not have a "switch box".
I changes the wires from #1 to #2 coil, no spark, #2 to #1, no spark. #2 to #3, spark, #3 to #2 spark. To me this looks like the #1 coil is no good, but also the wire coming to the coil is no good also. Could the trigger or stator be the problem also?
I tested the wiring going to the trigger as per manual and could not get a reading between 2 wires. Thanks in advance.
 
In case you don't get the answer here, bt doctur over on Net Boat Talk www.netboattalk.com/forums might be able to help ....but you'd have to join over there. It is very very slow over there (aka dead), but bt doc cks in regularly and he is an awesome resource.
 
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