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1989 Mercury 35hp ignition issues

et1981

New member
Well I got through the whole impeller replacement, thank you all for your help and insight. Got the boat in the water today and was travelling the 2 miles through the no wake zone to open her up when it fell flat on its face with about 1/4 mile to go. Last year I was having issues fouling my top cylinder plug. The marina suggested a weak coil, so this year I replaced both coils, wires, and plugs. I haven't pulled them yet but I assume I'm going to find the same plug fouled. What's left to look at to cause this issue? Summer's fading fast, I'd love to get out there sometime soon! Thanks as always!
 
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