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View Full Version : Mercury Tech Help with 91 Merc 115 HP



Rider
06-15-2010, 08:10 PM
I tried adjusting the timing, but no matter how much the trigger coil rotates, I get no change out of it. I ohmed out the coil follow the book and got around 800 ohms on both the black to brown and purple to white. spec says between 1200 to 1400 ohms, would the low resistance cause timing not to be adjustable from the rotation of the trigger coil?