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    89 merc 100 hp drops 1 or more cylinders just before plane.

    Hey guys, this is the first time I have posted on here, but I need some help. The fish are starting to bite, and my boat is broke. 3 years ago I bought an 89 Mercury 100 hp that needed a rebuild. I have always worked on engines, so the rebuild was no big deal, however, I'm not very good with...
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    89 100 hp merc won't run.

    Hello all, I am totally stumped. I have a 1989 100hp 4 cyl. outboard that I have been having trouble with. It started this spring when it died while I was fishing. I rebuilt the fuel pump and did find a tear in one of the diaphrams. I ran it for a short time and it seemed to be missing on one...
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