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  1. J

    1986 mercruiser 140 3.0L

    Hi everyone, I've been away from this forum for a little while but I wanted to share what I finally figured out that was wrong with my boat. After 20 minutes of driving my 1986 mercuiser 140 hp would start to bog down. It would idle all day long but bog down at full. I rebuilt the carb a...
  2. J

    1986 mercruiser 140 3.0L

    Looking for help with my 1986 mercruiser 140 3.0L. It runs fine for about 15 minutes and then bogs at full throttle. I have cleaned the carb twice, changed the fuel pump filter, new plugs, new distributer cap, tried another coil, cleaned the anit syphon valve and new gas. Every time I go out...
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