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  1. C

    2001 75hp merc 4 stroke warning horn

    Took boat out of the water for the season and changed lower unit oil and motor oil. Started the motor and the warning horn went off after 30 seconds of running. I let it go for a min. to allow oil to pick up, horn did not go off so i shut it down. tried it a couple more times and same result...
  2. C

    warning horn after oil change

    I have an 2001 4 stroke 75hp mecury outboard. I took it out of the water for the winter, all was well. I changed the motor oil with 25-40w (recomended) and the filter. When I started it up using ear muffs the warning horn went off after 20 -30 seconds of running. I shut it off and tried it...
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