I recently acquired a 1985 Merc 115 to replace my old, dead 70hp Johnson. The motor had been sitting for at least 12 years, but looked very clean, it wasn't even dirty or greasy, and it had the original spark plugs in it. I rebuilt the carbs and replaced every fuel line and the spark plugs and got it ready to test fire. Upon trying it out I am only getting spark to cylinder number 1. I noticed a few cracked/dry rotted wires by the rectifier and switch boxes and replaced them and tried again. Now I am just getting BETTER spark to cylinder number 1. If I switch the wire going to the #1 coil to a different coil I will get spark on that cylinder.
Edit: And yes, the impeller will be the next thing I replace.
Edit: And yes, the impeller will be the next thing I replace.
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