I have a 1990 90HP mercury out board . I have a buzzer that goes off at times . It is a constant buzzing high pitch the same buzzer as the one that beeps when you turn your switch on . Now i took it in to shop a couple years ago and they changed the oil resovoir and told me it was the low oil buzzer well guess again . Now it doesn't do it all the time and never did just getting more frequent .It is random and when it went off last time I felt the head nope cool and not the same buzzer sound . I have watched the oil injection levels since I bought the boat new and can tell if it is using enough or same amount as usual and it is . what I am needing due my thoughts are I have grounded wire so if any one has a wiring diagram i would appreciate it or if any one can figure the buzzer out or has some ideas they wold be appreciative . I have quicksilver controls. If you turn the switch to the left a little it stops buzzing but kills all instruments but motor runs great at that time that is what makes me think it is a short . I also changed the ignition switch . Still buzzes . hate to go fishing other than the buzzer the boat is great . the only thing that i havent done is cut the wire to the Buzzer but I am an old mechanic and know better
Thanks
Thanks
