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    87 merc 115 tachometer troubleshooting

    Thanks to the help on this board I now have my outboard running! The new problem is I now have an inoperative tach; the needle just sits on zero. It was working fine just the other day. The first thing I need to know is where does the signal originate from the motor? Even with the service...
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    87 Merc 115 basic troubleshooting

    What's the best way to check for spark? Can I just pull a plug and ground side against engine block and look for spark while cranking? This motor uses champion L76V gapless plugs. Can you still see the spark jump from the center electrode to the rim? Sorry for the dumb question. Thanks.
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    merc 115 in line six starting

    My merc 115 will only turn over ever so briefly when turning the ignition key. The starter almost immediately jumps out, though not always. This is particularly noticeable when while still in neutral I have the throttle forward as is the normal starting drill for this motor. I had it running...
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    Mercury 115 Water Pump Kit Installation

    I'm installing a water pump kit in my 1987 inline six Merc 115. It's the complete kit with housing, all seals etc. Do I use non-hardening permatex around the housing? Also, a little dishsoap on the impeller? Any other pointers would be appreciated.
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