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View Full Version : Mercury Tech 2003 Mercury 200hp V6 Carb 2 Cy No Spark



1god1love
06-24-2009, 03:28 PM
I have twin 200hp Mercury outboards on my 2003 Sea Fox. One of the engines will crank but not start...it is get gas but has no spark...since I have 2 of the same engines I changed the Control Module with no joy, engine that starts still starts, engine that wont start still wont start....battery voltage is approx 12.6v . I have not checked the trigger wiring yet but tech manual says resistence between the red+/white- should be between 300-350 ohms...I think there are more wires in the trigger wiring what resistence should those be? or does it matter?.
I have not checked the stator wiring either manual says resistence should be between 660-710 betweenW/G+/GW-, does not says what resistence should be for static testing between the 3 pair of yellow wires....or does that matter?
Can not image 6 CDm's going bad and kill switch is in the proper postion. Is ther anything else I can check to locate problem? all fuses are good....Thanks for you help

1BadAction
06-24-2009, 03:34 PM
Trigger or control module is pretty much the only thing that could cause that on new school electronics. Since you ruled out the black box theres a 99% chance its the trigger. I can't see six coils going at the same time unless there is a broken ground somewhere...

1god1love
07-15-2009, 10:06 AM
After changing out the Stattor and trigger assembly with no change, troubleshoot issue to bad ignition switch. Great learning experience but costly. Thanks for your input and God bless!